Sealant Manual AAMA 800-XX Section 1 - aamanet.org · E-Mail: [email protected] Web Site: AAMA...

This voluntary specification was developed by representative members of AAMA as advisory information and published as a public service. AAMA disclaims all liability for the use, application or adaptation of materials published herein.

© Copyright 2015 American Architectural Manufacturers Association

1827 Walden Office Square, Suite 550, Schaumburg, IL 60173 Phone: 847/303-5664 Fax: 847/303-5774

E-Mail: [email protected] Web Site: www.aamanet.org

AAMA 800-XX, Draft #2, Dated 6/3/15 Page i

800 Committee Approval Product Group Approval

Approved via Ballot #810-15 Out for Ballot (#824-15)

AAMA 800-XX

DRAFT #2

DATED 6/3/15

Sealant Manual AAMA 800-XX

Section 1

AAMA 800-XX, Draft #2, Dated 6/3/15 Page 1

FOREWARD

AAMA 800 Sealants Manual contains a group of documents utilized in the construction and installation of

fenestration products. In editions of this document with issue dates of 2010 and prior these document

were contained in one document. Beginning with the 2015 publication these documents, while remaining

connected, have been separated into individual documents as sub publications of this document.

This manual is presented in seven main sections. The first section is an introduction section followed by

six sections each containing one set of Voluntary Specifications and Test Methods for Sealants These

sections are :

Section 2, AAMA 800, Back Bedding/Glazing Compounds AAMA 802.3 and AAMA 805.2

Section 3, AAMA 800, Back Bedding Mastic Type Glazing Tapes AAMA 804.3, AAMA 806.3 and AAMA

807.3

Section 4, AAMA 800, Narrow Joint Seam Sealers AAMA 803.3

Section 5, AAMA 800, Exterior Perimeter Sealing Compound AAMA 808.3

Section 6, AAMA 800, Non-Drying Sealant AAMA 809.2

Section 7, AAMA 800, Expanded Cellular Glazing Tapes AAMA 810.1

These documents now are stand alone that contain all the specifications and test methods that are

applicable for each document.

1.1 AAMA 800 Cross Reference

The purpose of this cross-reference is to be a comprehensive list of the various voluntary sealants and

adhesives specification numerical callouts which are applicable whenever a generic reference to AAMA

800 Sealants is made. This list will be updated whenever applicable specifications are added or

removed.

802.3 Back Bedding/Glazing Compounds which permit movement without loss of bond and display

cohesive failure when tested in a peel configuration

Type I Back Bedding/Glazing Compounds have resistance to intermittent water contact

Type II Back Bedding/Glazing Compounds have resistance to extended water contact, but not

continuous immersion

803.3 Narrow Joint Seam Sealers

Type I Non-Sag

Type II Self-Leveling

AAMA 800-XX, DRAFT #2, DATED 6/3-15 Page 2

804.3 Back Bedding Mastic Glazing Tape for use in less severe back bedding and drop-in glazing

applications such as residential and light commercial fenestration products

805.2 Back Bedding/Glazing Compounds permit movement without loss of bond but require a higher

minimum adhesive strength than 802.3 compounds and may be allowed to display adhesive failure to the

substrate

Group A Back Bedding/Glazing Compounds display adhesive failure based on laboratory testing

Group C Back Bedding/Glazing Compounds display a minimum of 90% cohesive failure based on

laboratory testing

806.3 Back Bedding Mastic Glazing Tape in which the tape is subjected to continuous pressure exerted

from gaskets or pressure generating stop designs

807.3 Back Bedding Mastic Glazing Tape for commercial fenestration products in which the tape is not

subjected to continuous pressure from gaskets or pressure generating stop designs

808.3 Exterior Perimeter Sealing Compound

809.2 Non-Drying Sealants

810.1 Expanded Cellular Glazing Tapes

Type 1 tapes are intended as primary seals where tape is used by itself to prevent air and water

leakage or in a system when the tape acts as the primary sealant

Type 2 tapes are intended as secondary seals where the tape is used in combination with a full

bead of wet sealant to prevent air and water leakage

1.2 Definitions

Please refer to AAMA Glossary (AG-13) for all definitions unless otherwise specified.

1.3 Units of Measure

The primary units of measure in this document are metric. The values stated in SI units are to be

regarded as the standard. The values given in parentheses are for reference only.








AAMA 800 -XX

DRAFT #2

DATED 6/3/15

AAMA 800 Sealant Manual - Section 2 Voluntary Specifications and Test Methods for

Sealants Back Bedding/Glazing Compounds

AAMA 802.3 and AAMA 805.2


TABLE OF CONTENTS

Back Bedding/Glazing Compounds .............................................................................................................. 1 FOREWARD ................................................................................................................................................. 1 1.0 SCOPE .................................................................................................................................................... 1 2.0 PURPOSE ............................................................................................................................................... 2 3.0 REFERENCED DOCUMENTS ............................................................................................................... 2 4.0 DEFINITIONS ......................................................................................................................................... 3 5.0 GENERAL ............................................................................................................................................... 3 6.0 TESTS ..................................................................................................................................................... 7 7.0 LABORATORY TEST METHOD NOTES ............................................................................................. 24


FOREWARD

This document has previously been part of AAMA 800 Voluntary Specifications and Test

Methods for Sealants. These back bedding/glazing compounds may have other

applications within the fenestration industry however this specification primarily

addresses non-structural, in-shop glazing applications.

1.0 SCOPE

To provide a minimum level of performance for back bedding/glazing compounds that are

flowable, pumpable, or gunnable at application temperature.

1.1 Compounds shall be classified as:

802.3 (Type I)

802.3 (Type II)

805.2 (Group A)

805.2 (Group C)

Compounds may include single or multiple components at ambient or elevated

application temperatures.

1.2 Back bedding/glazing compounds are used to bed glass to the surrounding substrate

and are intended to remain ductile and prevent air infiltration and water leakage. 802.3

(Types I and II) Back Bedding/Glazing Compounds permit movement without loss of

bond and display cohesive failure when tested in a peel configuration. 805.2 (Groups A

and C) Back Bedding/Glazing Compound also permit movement without loss of bond but

require a higher minimum adhesive strength than 802.3 compounds and may be allowed

to display adhesive failure to the substrate.

1.2.1 802.3 Type I compounds have resistance to intermittent water contact.

1.2.2 803.2 Type II compounds have resistance to extended water contact, but not

continuous immersion.

1.2.3 805.2 Group A Compounds display adhesive failure based on laboratory testing.

NOTE 1: If there is any concern about adhesive failure, please consult the sealant

manufacturer for detailed performance history.


1.2.4 805.2 Group C Compounds display a minimum of 90% cohesive failure based on

laboratory testing.

NOTE 2: Sealant manufacturers may choose to test sealants to any or all of the four

classifications.

NOTE 3: The use of lap shear testing following exposures is offered to meet the needs

of window manufacturers for sealant strength data which may be used for window design

and estimating strength after accelerated aging. This data may provide insight on sealant

durability and performance.

1.3 The primary units of measure in this document are metric. The values stated in SI

units are to be regarded as the standard. The values given in parentheses are for

reference only.

2.0 PURPOSE

2.1 This document is intended to assist the window manufacturer to specify and obtain

back bedding/glazing compounds meeting minimum performance criteria.

3.0 REFERENCED DOCUMENTS

3.1 References to the standards listed below shall be to the edition indicated. Any

undated reference to a code or standard appearing in the requirements of this standard

shall be interpreted as to referring to the latest edition of that code or standard.

3.2 American Architectural Manufacturers Association (AAMA)

AAMA/WDMA/CSA 101/I.S. 2/A440-11, North American Fenestration

Standard/Specification for windows, doors, and skylights

3.3 ASTM INTERNATIONAL (ASTM)

ASTM C661-06(2011), Standard Test Method for Indentation Hardness of Elastomeric-

Type Sealants by Means of a Durometer

ASTM C961-06, Standard Test Method for Lap Shear Strength of Sealants


ASTM C734-06, Standard Test Method for Low-Temperature Flexibility of Latex Sealants

After Artificial Weathering

ASTM C794-10, Standard Test Method for Adhesion in Peel of Elastomeric Joint

Sealants

ASTM D2202-00(2010), Standard Test Method for Slump of Sealants

ASTM D2203-01(2011), Standard Test Method for Staining from Sealants

ASTM G154-06, Standard Practice for Operating Fluorescent Light Apparatus for UV

Exposure of Nonmetallic Materials

4.0 DEFINITIONS

Back Bedding/Glazing: An in-shop application where the glazing and/or panel(s) are

sealed to a surrounding sash or frame.

For all additional definitions, please refer to AAMA Glossary (AG-13).

5.0 GENERAL

5.1 To qualify as meeting this specification, products testes shall meet all requirements

as specified herein.

Test

Numb

er

Requireme

nt

802.3 805.2

Type I Type II Group A Group C

6.1 Hardness 55

Maximu

m

55

Maximu

m

70

Maximu

m

70

Maximu

m

6.2 Thin Film

Integrity

No

presence

of voids

No

presence

of voids

No

presence

of voids

No

presence

of voids

6.3

Test A

Peel

Adhesion

Minimum

90%

Cohesive

Failure or

--- Chemical

ly curing,

90% or

less

Chemical

ly curing,

more

than


at least

0.88

N/mm

(5lbf/in)

of width

cohesive

failure of

at least

2.2

N/mm

(12,5

lbf/in) of

width

90%

cohesive

failure of

at least

2.2

N/mm

(12,5

lbf/in) of

width

6.3

Test B

Peel

Adhesion

--- Minimum

90%

Cohesive

Failure or

at least

0.88

N/mm

(5lbf/in)

of width

--- ---

6.4 Lap Shear

with

Exposure

(Alternativ

e Test

Method to

6.3)

--- --- Chemical

ly curing,

less that

90%

cohesive

failure of

at least

207 kPa

(30 psi)

Chemical

ly curing,

more

than

90%

cohesive

failure of

at least

207 kPa

(30 psi)

6.5 Slump 2.5 mm

(0.1 in)

Maximu

m

2.5 mm

(0.1 in)

Maximu

m

2.5 mm

(0.1 in)

Maximu

m

2.5 mm

(0.1 in)

Maximu

m

6.6 Vehicle

Migration

None

allowed

None

allowed

None

allowed

None

allowed

6.7 Low

Temperatu

re

No

cracks

and//or

No

cracks

and//or

No

cracks

and//or

No

cracks

and//or


Flexibility loss of

adhesion

loss of

adhesion

loss of

adhesion

loss of

adhesion

6.8 Water

Resistance

No voids,

cracks,

separatio

n or

breakdo

wn

No voids,

cracks,

separatio

n or

breakdo

wn

No voids,

cracks,

separatio

n or

breakdo

wn

No voids,

cracks,

separatio

n or

breakdo

wn

5.2 Hardness Evaluation

When tested in accordance with ASTM C661 as modified in Section 6.1, the Shore "A"

hardness on all three samples shall not exceed values in the following table:

COMPOUND MAXIMUM SHORE “A”

802.3 (Types I and II)

805.2 (Groups A and C)

55

70

5.3 Thin Film Integrity

There shall be no presence of voids within the compound in any of the three samples

when tested in accordance with Section 6.2.

5.4 Peel Adhesion

5.4.1 802.3 (Type I) Compound

All panels shall have at least a 90% cohesive failure of at least 0.88 N/mm (5 lbf/in) of

width when tested in accordance with ASTM C794 as modified in Section 6.3 (Test A).

5.4.2 802.3 (Type II) Compounds

All panels shall have at least a 90% cohesive failure of at least 0.88 N/mm (5 lbf/in) of

width when tested in accordance with ASTM C794 as modified in Section 6.3 (Test B)

both prior to and after water immersion.

5.4.3 805.2Group A Compounds

Materials shall be chemically curing and all panels shall have a peel strength of at least

2.2 N/mm (12.5 lbf/in) of width when tested in accordance with ASTM C794 as modified

in Section 6.3 (Test A). Materials displaying less than 90% cohesive failure are to be

designated as Group A compounds.


5.4.4 Group C Compounds

All panels shall have at least a 90% cohesive failure of at least 2.2 N/mm (12.5 lbf/in) of

width when tested in accordance with ASTM C794 as modified in Section 6.3 (Test A).

Materials displaying 90% or more cohesive failure are to be designated as Group C

compounds.

5.5 Lap Shear Strength with Exposure

This is test method to serve as an alternate to peel adhesion for classification of 805.2 A

and 805.2 C groups only. Materials displaying less than 90% cohesive failure shall be

classified as Group 805.2 A. Materials displaying 90% or higher cohesive failure shall be

classified as Group 805.2 C.

When tested in accordance with ASTM C961 as modified in Section 6.4, the specimens

shall meet the following:

Samples 5a, 5b, 5c, 5d and 5e must have pull values of at least 207 kPa (30 psi).

NOTE 4: The 207 kPa (30 psi) minimum standard was derived as follows: Assuming a

(60 psf) trapezoidal load distribution on a “large lite” of 121.9 cm x 243.8 cm (48 in X 96

in), the maximum distributed load along the sealant bond line is 10 lbs/inch. Using a 1.27

cm (0.5 in) wide bond width (bite), the total stress on the sealant is 10 ÷ 0.5 = 20 psi. This

value was increased to 207 kPa (30psi) to provide a safety factor of 1.5 (consistent with

uniform structural load test requirements of AAMA/WDMA/CSA 101/I.S. 2/A440).

5.6 Slump

When tested in accordance with ASTM D2202 as modified in Section 6.5 the compound

shall have a slump less than 2.5 mm (0.1 in).

5.7 Vehicle Migration

There shall be no vehicle migration from the compound edge when tested in accordance

with ASTM D2203 as modified in Section 6.6. Contact stain through the filter paper is

allowable.

5.8 Low Temperature Flexibility

The compound when tested in accordance with ASTM C734 as modified in Section 6.7

shall not have cracks and/or loss of adhesion from the test panel.


5.9 Water Resistance

There shall be no presence of voids, cracks, separation or breakdown of the compound

when tested in accordance with Section 6.8.

6.0 TESTS

6.1 Use ASTM C661 for preparing and evaluating a total of nine test specimens.

However, use the cure and exposure conditions outlined below.

6.1.1 Specimen Cure and Exposure

6.1.1.1 Cure all nine specimens for seven days at 25°C ± 3°C (77°F ± 5°F).

6.1.1.2 Expose three specimens to each of the following conditions:

6.1.1.2.1 Sample A

25°C ± 3°C (77°F ± 5°F) for 21 days.

6.1.1.2.2 Sample B

Air circulating oven held at 82°C ± 3°C (180°F ± 5°F) for 14 days.

6.1.1.1.2.3 Sample C

RS type sun lamp positioned approximately 405 mm (16 in) above the sealant surface so

that a surface temperature of 60°C ± 6°C (140°F ± 10°F) is maintained. Lamps shall be

replaced after 500 hours use. Lamp exposure period is 21 days. For an alternative UV

source (see Section 7.8).

6.1.2 Specimen Exposure

6.1.2.1 After exposure, condition all nine specimens to 25°C ± 3°C (77°F ± 5°F).

Determine the instantaneous hardness for each exposure by averaging nine readings (3

per specimen). Report the results as sample A, B or C according to their exposure.

6.2 TEST METHOD FOR THIN FILM INTEGRITY OF GUNNABLE SEALANTS

6.2.1 Materials Required


6.2.1.1 Six etched and anodized aluminum (AA M10 C22 A31) panels 85 mm (3 3/8 in) x

170 mm (6 3/4 in) x 0.1 mm (1/32 in) thick.

6.2.1.2 Air circulating oven capable of maintaining a temperature of 82°C ± 3°C

(180°F ± 5°F).

6.2.1.3 Application equipment with nozzle to produce a bead 3 mm (1/8 in) in diameter.

6.2.1.4 12 mm (1/2 in) wide masking tape.

6.2.1.5 Twenty-four microscope slides, 25 mm (1 in) x 75 mm (3 in) x 1 mm (0.04 in).

6.2.1.6 RS type sun lamp with no more than 500 hours total burning time. For an

alternative UV source, see Section 3.8.

6.2.1.7 Six rigid plates, steel or aluminum 85 mm (3 3/8 in) x 170 mm (6 3/4 in) x 6 mm

(1/4 in) thick.

6.2.1.8 Six weights, 910 g (2 lb) each.

6.2.2 SUBSTRATE PREPARATION

6.2.2.1 Clean the aluminum panels in Section 2.3.1.1 and the microscope slides by the

procedure outlined in Section 3.5.

6.2.3 SPECIMEN PREPARATION

Place two strips of 12 mm (1/2 in) masking tape on the face side of the aluminum test

panel surface. Position the strips parallel to each other using the panels long edges as

guides. These strips shall run the entire length of the panel. [The tape in position on each

side of the face side shall be approximately 0.18 mm (0.007 in) thick and will serve as the

0.18 mm (0.007 in) spacer.]

Place two more strips of 12 mm (1/2 in) tape on top of the applied tape. Position this tape

so that it is one-half the length of the panel. [This double thickness of tape will serve as

the 0.36 mm (0.014 in) spacer.]


Apply two 3 mm (1/8 in) diameter beads (perpendicular to the tape) of test compound

approximately 25 mm (1 in) long to the test panel. The two beads shall be applied parallel

to each other and shall be spaced 25 mm (1 in) and 56 mm (2 1/4 in) from one end of the

panel. [These beads shall be between two sections of the tape either 0.18 mm (0.007 in)

thick or 0.36 mm (0.014 in) thick.]

Repeat this application using the opposite end of the panel for spacing requirements.

Holding a microscope slide by its ends, carefully place it on one bead of sealant and

gently press down until some resistance is felt. Do not attempt to force the slide down to

contact the tape and avoid any rocking or sliding motion while pressing. Repeat the

application of a slide to each of the remaining three beads. Set the assembly on a level

surface and lay a rigid plate over the slides. Set a 910 g (2 lb) weight on the plate in order

to press and hold the assembly for 24 hours at 25°C ± 3°C (77°F ± 5°F). At the end of the

24 hours, remove the weight and plate and allow the assembly to cure undisturbed for an

additional six days at 25°C ± 3°C (77°F ± 5°F). Prepare a total of six specimens by this

procedure.

6.2.4 SPECIMEN EXPOSURE

6.2.4.1 Sample No. 3a (two assemblies)

25°C ± 3°C (77°F ± 5°F) - 21 days.

6.2.4.2 Sample No. 3b (two assemblies)

Air circulating oven held at 82°C ± 3°C (180°F ± 5°F) - 14 days.

6.2.4.3 Sample No. 3c (two assemblies)

RS type sun lamp positioned approximately 405 mm (16 in) above the compound surface

and able to maintain a specimen surface temperature of 60°C ± 6°C (140°F ± 10°F).

Lamps shall be replaced after 500 hours use. Lamp exposure - 21 days. After exposure

evaluate thin film integrity. For an alternative UV source, see Section 3.8.

6.2.5 SPECIMEN EVALUATION

6.2.5.1 After the above exposures, report any cracks, voids, discoloration, or bond loss.

Identify the samples as 3a, 3b or 3c according to their exposure.

6.3 TEST METHOD FOR PEEL ADHESION



6.3.1.1 Six standard etched and anodized (AA M10 C22 A31) aluminum panels 85 mm (3

3/8 in) x 170 mm (6 3/4 in) x 0.8 mm (1/32 in) thick.

6.3.1.2 Six double strength glass panels 85 mm (3 3/8 in) x 170 mm (6 3/4 in).

6.3.1.3 Clean white rags or paper towels.

6.3.1.4 Air circulating oven.

6.3.1.5 Twelve 25 mm (1 in) x 200 mm (8 in) strips of desized grade A airplane fabric,

121 g/m (4.28 oz/yd), 80/84 count (see Section 3.4) .

6.3.1.6 Commercial Grade MEK Solvent

6.3.1.7 Testing machine with tension grips capable of pulling at a rate of separation of 50

mm (2 in) per minute with a dial or chart indicator calibrated in 4.4 N (1 lbf) units.

6.3.1.8 Paper masking tape, 25 mm (1 in) wide.

6.3.1.9 Putty knife or spatula.

6.3.2 Panel Preparation

6.3.2.1 Use ASTM C794 to prepare panels and specimens. The following alternative

specimen size may be used. (See also Figures 1 thru 8 which follow.)

Inside

Dimensions

Total Thickness

Top Section

Bottom Section

35 mm (1.4 in) wide by 130 mm (5

in) long

4 mm (0.16 in)

2 mm (0.08 in)

2 mm (0.08 in)

6.3.3 Specimen Conditioning and Exposure


Expose the test panels as follows after a seven-day conditioning period at 25°C ± 3°C

(77°F ± 5°F).

Materials used in setting up peel panel assembly

Two piece jig frame of proper thickness showing slotted ribbon channel guide. See

dimensioned drawing.


Two piece jig frame showing guide pins and holes with ribbon guide slot.

Dimensioned drawing of jig frame

FIGURE 1 - Fixture


Test compound/sealant being applied to substrate through bottom section of jig panel

frame.

Test material being leveled off on top of lower jig frame.

FIGURE 2 – Initial Sealant/Compound Application

Test sealant/compound being applied to bottom or peel ribbon (buttering).

Coated (buttered) ribbon being placed on lower half of uncured test material. Ribbon is

now aligned with slot in lower jig frame.


FIGURE 3 – Application of Peel Ribbon

Top of jig frame in place. Holes and pins allow easy alignment.

FIGURE 4 – Final Jig Assembly

Test sealant/compound applied to top of ribbon

Spread test compound over ribbon

FIGURE 5 – Final Sealant/Compound Application


Scribe paper clip or small diameter wire around perimeter of uncured sample.

FIGURE 6 – Scribing

Carefully lift off upper guide jig.

Carefully lift off lower guide jig. Follow the recommended cure cycle in AAMA 800-XX

Section 6.3.3.

FIGURE 7 – Jig Removal


Cut through cured sealant to panel. Metal guide is utilized for 25mm (1”) wide cut. Guide

is in plane with ribbon

Thin polyethylene film being placed on back of cured sealant. This reduces false

readings when 180 degree pull is executed (eliminates drag of sealant to sealant).

Undercut the compound to produce separation at the interface in conjunction with Section

6.3.4.2. (NOTE 5: Picture shows optional method which laboratories may use where

undercuts are made to substrate during pull.)

FIGURE 8 – Final Preparation and Testing


6.3.3.1 Sample A (three aluminum panels)

25°C ± 3°C (77°F ± 5°F) - 21 days

6.3.3.2 Sample B (three aluminum panels)

82°C ± 3°C (180°F ± 5°F) - 14 days

6.3.3.3 Sample C (three glass panels)

25°C ± 3°C (77°F ± 5°F) - 21 days

6.3.3.4 Sample D (three glass panels)

82°C ± 3°C (180°F ± 5°F) - 14 days

6.3.4 Test Procedures

6.3.4.1 Immediately following the specimen exposures described in Section 6.3.3, allow

the specimens B and D to be conditioned to 25°C ± 3°C (77°F ± 5°F) for a minimum of

one hour or until the specimen temperature measures 25°C ± 3°C (77°F ± 5°F). When all

specimens have reached 25°C ± 3°C (77°F ± 5°F), make two cuts per panel with a sharp

blade, cutting completely through to the substrate surface and being careful not to cut the

peel cloth strip. Cuts shall be exactly 25 mm (1 in) apart.

6.3.4.2 Test A

Cover the sealant with a polyethylene strip before placing in the tensile testing machine.

This will allow the material coated peel strip to be pulled parallel (or 180° to the sealant)

at a rate of 50 mm (2 in) per minute. Peel the sealant approximately 12 mm (1/2 in) and

then cut sealant to the substrate to which it is attached. (Undercut the compound to

produce separation at the interface.)

6.3.4.3 Test B

Following procedure as outlined in Test A peel only one-half the length of each test panel

and record the results. Immerse the half-peeled panels in tap water at 25°C ± 3°C (77°F

± 5°F) for seven days. At the end of seven days remove the panels and continue the test

on the remaining water-conditioned compound.

6.4 TEST METHOD FOR SHEAR STRENGTH WITH EXPOSURE



6.4.1.1 Fifty 25 mm (1 in) x 76 mm (3 in) x 6 mm (1/4 in) clear, uncoated glass coupons.

6.4.1.2 Deep freeze unit capable of maintaining a temperature of -14 ± 1°C (7 ± 2°F).

6.4.1.3 Air circulating oven capable of maintaining a temperature of 82 ± 3°C

(180 ± 5°F).

6.4.1.4 RS type sun lamp with no more than 500 hours total burning time. For an


6.4.1.5 Testing machine with tension grips capable of pulling at a rate of separation of 12

mm (1/2 in) per minute with a dial or chart indicator calibrated in 4.4 N (1 lbf) units.


6.4.1.7 Template capable of producing the desired sealant overlap and thickness

between the sets of glass coupons.

6.4.2 Lap Shear Preparation

(See Figures 12 and 13)

Dimensions

Sealant Overlap (Bite) 12 mm (1/2 in) wide by 25 mm (1 in) long

Sealant Thickness 0.76 mm (0.030 in)


FIGURE 12 – Lap Shear Preparation

FIGURE 13 – Lap Shear Preparation


Expose the lap shear specimens as follows after the optional cure period.

6.4.3.1 Sample No. 5a (five lap shear specimens)

25°C ± 3°C (77°F ± 5°F) for 21 days

6.4.3.2 Sample No. 5b (five lap shear specimens)

Air circulating oven held at 82°C ± 3°C (180°F ± 5°F) for 14 days

6.4.3.3 Sample No. 5c (five lap shear specimens)

Dimension Length I 76 mm (3 in) J over 12 mm (1/2 in) K 6 mm (1/4 in) L 64 mm (2.5 in) M 7 mm (0.280 in)

I

K

L

M

N

Dimension Length A, F 76 mm (3 in) B, G 25 mm (1 in) C, H 6 mm (1/4 in) D 0.76 mm (0.030 in)

Sealant

Glass Coupons

A B C

D

E F G

H

AAMA 800-XX, DRAFT #2, DATED 6/3/15 Page 20

RS type sun lamp positioned approximately 405 mm (16 in) above the specimen so that a surface

temperature of 60°C ± 6°C (140°F ± 10°F) is maintained. Lamps shall be replaced after 500 hours of use.

Lamp exposure period is 21 days. For an alternative UV source, see Section 3.8.

6.4.3.4 Sample No. 5d (five lap shear specimens)

25°C ± 3°C (77°F ± 5°F) water soak for seven days

6.4.3.5 Sample No. 5e (five lap shear specimens) Deep freeze unit held at -14°C ± 1°C (7°F ± 2°F) for 24

hours


6.4.4.1 Immediately following the specimen exposures described in Section 2.5.1.3, allow specimens 5b

and 5c to be conditioned to 25°C ± 3°C (77°F ± 5°F) for a minimum of one hour, or until the specimen

temperature measures 25°C ± 3°C (77°F ± 5°F), before testing. For specimen 5d, test wet, and 5e test

immediately after conditioning (as close to -14°C ± 1°C (7°F ± 2°F) as possible).

6.4.4.2 Testing

Before placing the specimens in the testing machine (see Figure 14), it is recommended to cover both

ends of the lap shear construction with masking tape to help prevent it from slipping in the tension grips.

Pull the specimens at a rate of 12 mm (1/2 in) per minute until failure. Record the maximum pull value and

mode of failure (percent of cohesive failure). Average the five values for each sample for the final report.

FIGURE 14 – Testing Machine

Tension Testing

Lap Shear Specimen


6.5 TEST METHOD FOR SLUMP

6.5.1 MATERIALS REQUIRED

As outlined in ASTM D2202.

6.5.2 PROCEDURE

Conduct test as outlined in ASTM D2202 except temperature shall be 25°C ± 3°C (77°F ± 5°F), and time

shall be five minutes. At the end of the five minute time interval record the distance of slump in millimeters

(tenths of an inch).

6.5.2.1 For 803.3 Type II materials only, alter the test fixture to use a rectangular slot, 3.2 mm (1/8”) x 38

mm (1½”) wide x 6.35mm (1/4”) deep (see Figures 9 and 10).

FIGURE 9 – Slump Jig Fixture (Showing Slot Test)


FIGURE 10 – Slump Jig Drawing

6.6 TEST METHOD FOR VEHICLE MIGRATION

6.6.1 Prepare vehicle migration test specimens in accordance with ASTM D2203 with the following

modifications:

6.6.1.1 Specimen exposure and evaluation.

6.6.1.1.1 The specimen shall be allowed to cure for seven days at 25°C ± 3°C (77°F ± 5°F). Then place

the specimen in an air circulating oven for 14 days maintaining a temperature of 82°C ± 3°C (180°F ±

5°F). After exposure observe for vehicle migration from the edge of the compound.

6.7 TEST METHOD FOR LOW TEMPERATURE FLEXIBILITY


6.7.1 Use ASTM C734 to prepare test specimens using three standard etched and anodized (AA M10C

22A 31) aluminum panels 85 mm (3 3/8 in) x 170 mm (6 3/4 in) x 0.1 mm (1/32 in) thick and template

consisting of an aluminum or brass frame with inside dimensions of 130 mm (5 in) x 40 mm (1 1/2 in) x 6

mm (1/4 in) thick.

6.7.2 Allow test specimens to air dry for seven days at 25°C ± 3°C (77°F ± 5°F). Place the three panels in

air circulating oven for 14 days maintaining temperature at 82°C ± 3°C (180°F ± 5°F). Remove the panels

from oven and allow specimens time to reach ambient temperature. Place the assembly in deep freeze

and maintain a -14°C ± 1°C (7°F ± 2°F) for 24 hours along with a 25 mm (1 in) steel mandrel

approximately 200 mm (8 in) long. While still in the deep freeze, place each specimen in turn on the

mandrel with the aluminum plate next to the mandrel, and without holding the sealant bend the specimen

180° around the mandrel within one second.

6.8 TEST METHOD FOR WATER RESISTANCE


6.8.1.1 Three standard etched and anodized (AA M10 C22 A31) aluminum panels 85 mm (3 3/8 in) x 170

mm (6 3/4 in) x 0.8 mm (1/32 in) thick.



6.8.1.4 Three single strength glass panels 85 mm (3 3/8 in) x 170 mm (6 3/4 in).

6.8.1.5 Three rigid plates, steel or aluminum 85 mm (3 3/8 in) x 170 mm (6 3/4 in) x 6 mm (1/4 in) thick.

6.8.1.6 Three weights, 910 g (2 lb) each.

6.8.2 Procedure

Prepare three specimens as follows:

Place two 12 mm (1/2 in) wide strips of masking tape on the face side of the aluminum test panel surface.

Position the strips parallel to each other using the panel’s long edges as guides. These strips shall run the


entire length of the panel. The tape in position on each edge of the face side shall be approximately 0.18

mm (0.007 in) thick.

Place an additional strip of 12 mm (1/2 in) tape on top of each applied tape. Position this tape so that it

covers the entire length of the panel. (This double thickness of tape will serve as a 0.36 mm (0.019 in)

spacer.) Apply a 3 mm (1/8 in) diameter bead of test compound approximately 12 mm (1/2 in) inside and

parallel to each side of the panel. Apply across bottom of the panel to complete the "U" shape trough.

Holding the single strength glass by its edges, carefully place it on the sealant and gently press down until

some resistance is felt. Do not attempt to force the glass to contact the tape and avoid rocking or sliding

motion while pressing.

Repeat on the remaining specimens.

Set the assemblies on a level surface and lay a rigid plate on each. Set a 910 g (2 lb) weight on the plate

in order to press and hold the assemblies for 24 hours at 25°C ± 3°C (77°F ± 5°F). At the end of 24 hours

remove the weight and plate and allow the specimens to cure undisturbed for an additional six days at

25°C ± 3°C (77°F ± 5°F). Place specimens in an air circulating oven at 82°C ± 3°C (180°F ± 5°F) for

seven days. Cool at room temperature and fill trough with tap water. Stand in vertical position for 14 days.

NOTE 6: Voids and other defects present before water exposure should be noted and disregarded in the

final evaluation.

7.0 LABORATORY TEST METHOD NOTES

7.1 SEALANT SAMPLING

The sealant to be tested shall be taken directly from a randomly selected container as commercially

supplied by the manufacturer. The container shall be full and not previously opened. The testing shall be

completed within the shelf-life recommended by the manufacturer. The sealant manufacturer's

instructions giving any options allowed in the test methods shall be obtained along with the sealant

sample.

7.2 HOW TO EVALUATE RESULTS

After testing, examine each group of specimens representing a given test. Should any one specimen be

found not to meet requirements, the given test shall be repeated.

NOTE 7: Only one repeat per test shall be permitted.


If the sealant fails the specific retest, a new sample shall be submitted and all the requirements of the

specification shall be tested.

7.3 OPTIONAL CURE, PRE-CURE OR PRE-CONDITIONING OF TEST SPECIMENS PRIOR TO

EXPOSURE CONDITIONS

The curing conditions for a test specimen prior to test requirement exposure; i.e., 82°C ± 3°C (180°F ±

5°F) for 14 days, may require moisture and/or oxygen to facilitate a cure. Also, some compounds may

require a step-type temperature gradation for elimination of solvents prior to test exposure. The following

conditions are examples of such options.

a. 25°C ± 3°C (77°F ± 5°F) with 50% ± 5% Relative Humidity.

b. 25°C ± 3°C (77°F ± 5°F) with 95% ± 5% Relative Humidity.

c. 38°C ± 3°C (100°F ± 5°F) with 95% ± 5% Relative Humidity.

d. 25°C ± 3°C (77°F ± 5°F) (Room Temperature Average) 45% to 65% Relative Humidity.

e. 25°C ± 3°C (77°F ± 5°F) (45% to 65% Relative Humidity) 7 days + 7 days at 60°C ± 3°C (140°F ±

5°F).

f. 25°C ± 3°C (77°F ± 5°F) (45% to 65% Relative Humidity) 7 days + 7 days at 38°C ± 3°C (100°F ±

5°F).

Should any of the above variations thereof be specified by the compound manufacturer, a notation on the

test report shall be made indicating the conditions used. If no conditions are specified by the compound

manufacturer, the standard criteria seven days at 25°C ± 3°C (77°F ± 5°F) shall be used prior to the

elevated temperature exposure requirements in the test.

NOTE 8: A maximum of 14 days and/or 70°C (158°F) shall be permitted to be used as an optional pre-

cure.

7.4 PEEL ADHESION PREPARATION

ASTM C794 specifies a peel strip material of desized, Grade A, Airplane Cloth, 121 g/m (4.28 oz/yd),

80/84 count.

The sealant manufacturer is permitted to specify other types of strip material to insure adequate adhesion

between the strip and the sealant. Other fabrics, foils or screens are permitted to be used. The peel strip

material shall be described and noted on the test report.


NOTE 9: The above company is listed for convenience only and the listing is not, in any way, an approval

or endorsement by AAMA.

7.5 SUBSTRATE PREPARATION

Unless cleaning instructions are given in the individual test method, clean all metal and glass test

surfaces using the procedure outlined below.

a. Always pour solvent on the rag being used. Never dip the rag in the cleaning solvent, as this

contaminates the solvent.

b. Use the "Two Rag Wipe" technique. One rag is used to wipe off the wet solvent and contaminates

from the surface. Use a second rag one time in one direction to remove any remaining solvent

and contaminants, allowing the solvent to dry on the surface without wiping with a second dry

absorbent cloth merely re-deposits the contaminants as the solvent dries.

c. Change to clean rags frequently as you see them becoming soiled. It is easy to see the soiling if

white rags are used.

d. Always use clean containers for solvent use and storage.

e. Follow solvent supplier's recommendations for solvent use and storage.

NOTE 109: Sealant manufacturer and/or sealant user should test specific sealants, substrates, primers (if

required) and cleaning procedures to ensure adequate adhesion is developed under actual conditions.

7.6 SEALANTS WITH SPACERS

Some gunnable sealants with spacer beads cannot be tested to some requirements within their

respective specifications because spacers will not allow specified test specimen configuration, or can

produce results not characteristic of the same materials without spacers. Therefore, in those cases testing

shall be done using sealants without spacers. Testing and acceptance of sealants with spacers shall be

agreed to between the sealant supplier and user. Deviations in testing due to spacers shall be noted on

the testing report.

7.7 COMPATIBILITY

This specification qualifies a sealant for use. It does not address the adhesion capability of the sealant for

a specific substrate nor the compatibility of the sealant with the materials it contacts. Adhesion and


compatibility characteristics required for specific substrates or finishes shall be determined by the

following test methods:

NOTE 11: Several alternative test methods are available from ASTM.

A. TEST METHOD A - Compatibility with Plastic Glazing Beads or Setting Blocks

1. Materials Required

a. Two 600 ml (20 oz), high form beaker (no pouring lip). Two watch glass covers for same.

b. Air circulating oven.

c. Two 100 mm (4 in) pieces of plastic glazing bead and/or setting block to be evaluated.

2. Procedure

Apply a 6 mm (1/4 in) diameter linear bead of bedding material 50 mm (2 in) long to one 100 mm (4

in) piece of material to be evaluated. Immediately place the test strip (compound applied) plus one

100 mm (4 in) piece of specimen (with no compound applied) in separate beakers and cover with

watch glasses. Condition for 24 hours at 25°C ± 3°C (77°F ± 5°F) then place beakers and strips in a

82°C ± 3°C (180°F ± 5°F) air circulating oven for 72 hours. After 72 hours exposure in the oven,

remove the material from the oven and condition to 25°C ± 3°C (77°F ± 5°F) for a minimum of one

hour. The material being tested shall not be evaluated until its temperature has been determined to

be 25°C ± 3°C (77°F ± 5°F). Evaluate the compatibility of the bedding compound by reporting any

differences between the plastic bead or accessory with compound applied and that without

compound. Observe the sealants and substrates for discoloration, staining, tackiness, softening or

crazing.

B. TEST METHOD B - Compatibility with Laminated Glass


a. Two 600 ml (20 oz), high form beakers (no pouring lip). Two watch glass covers for same.


c. Six pieces of laminated glass 50 mm x 50 mm (2 in x 2 in).

2. Procedure

Apply test compound approximately 6 mm (1/4 in) thick to the surface of the edge of two adjacent

sides of three laminated glass pieces being sure to cover bond line (interface of glass and


laminate). Immediately place three specimens with test strip (compound applied) plus three

specimens (with no compound applied) in separate beakers and cover with watch glasses.

Condition for 24 hours at 25°C ± 3°C (77°F ± 5°F) then place beakers and strips in a 82°C ± 3°C

(180°F ± 5°F) air circulating oven for 72 hours. After 72 hours exposure in the oven, remove the

material from the oven and condition to 25°C ± 3°C (77°F ± 5°F) for a minimum of one hour. The

material being tested shall not be evaluated until its temperature has been determined to be 25°C ±

3°C (77°F ± 5°F). When compared to the control (specimens without compound) there shall be no

differences in fogging, separation, discoloration or cracking.

7.8 RS/UV LAMP ALTERNATIVE

The following described lamp sources shall be permitted for use .

7.8.1. UV Source

The UV source shall consist of an exposure box containing UVA-340 fluorescent UV lamps positioned at

a distance of 100 mm ± 6 mm (4 in ± 1/4 in) from the surface of the test specimens.

Conventional four-lamp fluorescent fixtures shall be acceptable with the test specimens being oriented

within the confines of the reflector hood of the fixture.

NOTE 1210: UVA-340 Lamp Rotation - after 450 to 500 hours of lamp operating time, rotate lamps as

specified in ASTM G154.

7.8.2. RS lamp Source

RS type sun lamp positioned approximately 405mm (16 in) above the compound surface and able to

maintain a specimen surface temperature of 60°C ± 6°C (140°F ± 10°F). Lamps shall be replaced after

500 hours use.

NOTE 1311: Due to the discontinuation of manufacture, the RS Sunlamp specified in these test methods may not be available for use. In the event the RS Sunlamp is not available, the UV source shall be used.








AAMA 800-XX

DRAFT #2

DATED 6/3/15


Sealants Back Bedding Mastic Type Glazing Tapes

AAMA 804.3, AAMA 806.3, AAMA 807.3


TABLE OF CONTENTS

FOREWARD ................................................................................................................................................. 2 1.0 SCOPE .................................................................................................................................................... 2 2.0 PURPOSE ............................................................................................................................................... 2 3.0 REFERENCED DOCUMENTS ............................................................................................................... 2 4.0 DEFINITIONS ......................................................................................................................................... 3 5.0 GENERAL ............................................................................................................................................... 3 6.0 TESTS ..................................................................................................................................................... 5 7.0 LABORATORY TEST METHOD NOTES ............................................................................................. 10


FOREWARD

This document has previously been part of AAMA 800 Voluntary Specifications and Test Methods for

Sealants. These back bedding glazing tapes may have other applications within the fenestration industry

however this specification primarily addresses non-structural, in-shop glazing applications.

1.0 SCOPE

To provide a minimum level of quality for back bedding (mastic type) glazing tape for use in fenestration

applications. These tapes are preformed, 100% solids, ductile, extruded or calendared and deformable

under pressure; they shall be designed to seal glazing and/or panel(s) to a surrounding sash or frame.

1.1 These tapes shall be classified as:

1.1.1 804.3 Tape

The back bedding/glazing tapes are designed for use in less severe back bedding and drop-in glazing

applications such as residential and light commercial fenestration products.

1.1.2 806.3 Tape

The back bedding/glazing tapes are designed for use in high performance commercial fenestration

products in which the tape is subjected to continuous pressure exerted from gaskets or pressure

generating stop designs.

1.1.3 807.3 Tape

The back bedding/glazing tapes are designed for use in commercial fenestration products in which the

tape is not subjected to continuous pressure from gaskets or pressure generating stop designs. This tape

may be used in applications described for 804.3 tapes.

1.2 The primary units of measure in this document are metric. The values stated in SI units are to be


2.0 PURPOSE

2.1 This document is intended to assist the window manufacturer to specify and obtain back

bedding/glazing tapes meeting minimum performance criteria.



3.1 References to the standards listed below shall be to the edition indicated. Any undated reference to a

code or standard appearing in the requirements of this standard shall be interpreted as to referring to the

latest edition of that code or standard.


AAMA/WDMA/CSA 101/I.S. 2/A440-11, North American Fenestration Standard/Specification for windows,

doors, and skylights


ASTM C661-06(2011), Standard Test Method for Indentation Hardness of Elastomeric-Type Sealants by

Means of a Durometer

ASTM C765-97(2007), Standard Test Method for Low-Temperature Flexibility of Preformed Tape

Sealants

ASTM C772-03(2009), Standard Test Method for Oil Migration or Plasticizer Bleed-Out of Preformed

Tape Sealants

ASTM C879-03(2009), Standard Test Methods for Release Papers Used With Preformed Tape Sealants

ASTM C908-00(2006), Standard Test Method for Yield Strength of Preformed Tape Sealants

ASTM G154-06, Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of

Nonmetallic Materials

4.0 DEFINITIONS

Glazing Tapes: Preformed tape products which can be used for in-shop applications where the glazing

and/or panel(s) are sealed to a surrounding sash or frame.

For all additional definitions, please refer to AAMA Glossary (AG-13)

5.0 GENERAL

5.1 To qualify as meeting this specification, products testes shall meet all requirements as specified

herein.


Test

Number

Property 804.3 806.3 807.3

6.1 Basic Visual

Screening

No surface

cracks or

bond loss

No surface

cracks or

bond loss

No surface

cracks or

bond loss

6.1 Vehicle

Migration

No vehicle

migration

when

exposed per

Section

6.1.2.1

No vehicle

migration

when

exposed per

Section

6.1.2.1

No vehicle

migration

when

exposed per

Section

6.1.2.1

6.1 Vehicle

Migration

3 mm (1/8

in)

maximum

from the

edge of the

tape when

exposed per

Sections

6.1.2.2 and

6.1.2.3

3 mm (1/8

in)

maximum

from the

edge of the

tape when

exposed per

Sections

6.1.2.2 and

6.1.2.3

3 mm (1/8

in)

maximum

from the

edge of the

tape when

exposed per

Sections

6.1.2.2 and

6.1.2.3

6.2 Hardness

Evaluation

After aging

not exceed

80, not more

than 20%

increase

from original

After aging

not exceed

60, not more

than 30%

increase

from original

After aging

not exceed

80, not more

than 20%

increase

from original

6.3 Yield

Strength

Initial and

Heat Aged

41.4 kPa (6

psi)

minimum

Initial and

Heat Aged

41.4 kPa (6

psi)

minimum

Initial and

Heat Aged

41.4 kPa (6

psi)

minimum

6.4 Sag 1.6 mm

(1/16 in)

maximum

1.6 mm

(1/16 in)

maximum

1.6 mm

(1/16 in)

maximum

6.5 Low

Temperature

No cracking

or loss of

No cracking

or loss of

No cracking

or loss of


Flexibility adhesion adhesion adhesion

6.6 Water

Resistance

No

presence of

voids,

cracks,

separation

or

breakdown

of the tape

No

presence of

voids,

cracks,

separation

or

breakdown

of the tape

No

presence of

voids,

cracks,

separation

or

breakdown

of the tape

6.7 Backing

Removal

Complete

removal of

paper or

support, no

tearing or

adhesion to

tape

Complete

removal of

paper or

support, no

tearing or

adhesion to

tape

Complete

removal of

paper or

support, no

tearing or

adhesion to

tape

6.0 TESTS

6.1 Test according to ASTM C772 except as follows:


In addition to those items required by ASTM C772, provide the following:

6.1.1.1 RS type sun lamp (500 hours maximum use). For an alternative UV source, see Section 7.8.

6.1.2 Procedure

Prepare six test specimens and expose as follows:

6.1.2.1 Sample A

Two specimens for 21 days at 25°C ± 3°C (77°F ± 5°F)

6.1.2.2 Sample B


6.1.2.3 Sample C


Two specimens for 21 days exposure by an RS type sun lamp positioned approximately 405 mm (16 in)

above the compound surface and able to maintain a specimen surface temperature of 60°C ± 6°C (140°F

± 10°F). For an alternative UV source, see Section 6.8.

6.1.3 Basic Visual Screening

In addition to the procedures required in ASTM C772, examine the exposed surfaces of the tape for

cracks or other visually observable deterioration of the tape surface.

6.2 PREFORMED TAPES


6.2.1.1 In addition to those items required by ASTM C661, provide the following.

6.2.1.2 Tape to be tested 3 mm (1/8 in) to 6 mm (1/4 in) thick x 6 mm (1/4 in) to 12 mm (1/2 in) wide.

Square tape profiles shall be acceptable.


6.2.1.4 Shore "OO" Hardness Instrument.

6.2.2 Procedure

6.2.2.1 Two tape test specimens shall be formed 125 mm (5 in) x 38 mm (1 1/2 in) x 6 mm (1/4 in) on

aluminum plates by plying individual lengths of tape.

6.2.2.2 Condition one test specimen for 21 days at 25°C ± 3°C (77°F ± 5°F) and the second specimen for

21 days at 82°C ± 3°C (180°F ± 5°F).

6.2.2.3 At the end of 21 days conditioning, remove the second specimen from the oven and allow to cool

to 25°C ± 3°C (77°F ± 5°F) for a minimum of four hours.

6.2.3 Testing

6.2.3.1 804.3 and 807.3 Tapes

6.2.3.1.1 Use the Shore "OO" test according to ASTM C661 procedure for taking hardness readings.


6.2.3.2 806.3 Tapes

6.2.3.2.1 Use the Shore "A" test according to ASTM C661 procedure for taking hardness readings.

6.2.4 Reporting

Report the average value of the three readings for each test specimen.

6.3 TEST METHOD FOR YIELD STRENGTH – PREFORMED TAPES

6.3.1 Test according to ASTM C908 except as follows:


In addition to those materials required in ASTM C908, provide the following:

6.3.2.1 Four glass plates as described in Section 3.1 of ASTM C908.

6.3.2.2 Four standard etched and anodized aluminum (AA M10 C22 A31) panels 75 mm (3 in) x 75 mm

(3 in) thick x 6 mm (1/4 in) thick.


6.3.2.4 Rule graduated in 1 mm (1/32 in) increments.

6.3.3 Test Specimens

6.3.3.1 Prepare four test specimens using aluminum plates in place of steel.

6.3.3.2 Test according to Section 9 of ASTM C908.

6.3.4 Conditioning

6.3.4.1 Condition two test specimens for 24 hours at 25°C ± 3°C (77°F ± 5°F).

6.3.4.2 Condition two test specimens for 14 days at 82°C ± 3°C (180°F ± 5°F).

6.3.5 Procedure


6.3.5.1 Record the average width of the contact area of the tape to the plate glass as measured to the

nearest 1 mm (1/32 in).

6.3.6 Calculations

6.3.6.1 For each specimen, calculate the tensile yield strength in N (lbf) as follows:

Yield Strength = F/A

Where:

F = peak tension load recorded in N (lbf)

A = area recorded in m² (in²)

A1= Measure area of adhesive failure, if any, to each Substrate

Calculate percent of cohesive separation (C.S.):

C.S. = (A – A1)

(100) A

6.3.7 Report

6.3.7.1 The report shall include the following:

6.3.7.1.1 Yield strength in N/m2 (lbf/in2) of each specimen after conditioning.

6.3.7.1.2 Percent of cohesive separation (C.S.).

6.3.7.2 Type of tension testing machine used (hydraulic, mechanical).

6.3.7.3 Substrates and primers used.

6.4 TEST METHODS FOR SAG



6.4.1.1 Three standard etched and anodized aluminum (AA M10 C22 A31) panels 85 mm (3 3/8 in) x 170

mm (6 3/4 in) x 0.8 mm (1/32 in) thick.


Square tapes shall be acceptable. In addition, 0.8 mm (1/32 in) thickness shall be acceptable for 806.3,

Back Bedding Glazing Tape.

6.4.1.3 Metal scribe.


6.4.2 Procedure

Scribe two lines 3 mm (1/8 in) apart; near the center of the panel on the face of the aluminum panel

parallel to the long 170 mm (6 3/4 in) side. Place tape on the panel in such a way that one long edge is

coincident with one line (leaving the other line exposed). Press tape lightly to insure contact. Immediately

place in air circulating oven at 82°C ± 3°C (180°F ± 5°F) for 14 days. The lower scribed line shall be

parallel to the bottom of the oven during the exposure and the plane of the panel shall be vertical. Check

the sample every day for the first seven days. Check at the end of 14 days. Measure the amount of sag.


6.5.1 Test according to ASTM C765 except as follows:

6.5.1.1 Tape to be tested shall be 3 mm (1/8 in) to 6 mm (1/4 in) thick x 6 mm (1/4 in) to 12 mm (1/2 in)

wide. Square tapes shall be acceptable.

6.5.1.2 Test shall be performed at -18°C ± 3°C (0°F ± 5°F).

6.6 WATER RESISTANCE PREFORMED TAPES


6.6.1.1 One standard etched and anodized (AA M10 C22 A31) aluminum panel 85 mm (3 3/8 in) x 170

mm (6 3/4 in) x 0.8 mm (1/32 in) thick.

6.6.1.2 Air circulating oven capable of maintaining a temperature of 82°C ± 3°C (180°F ± 5° F).


6.6.1.3 One single strength glass panel 85 mm (3 3/8 in) x 170 mm (6 3/4 in).

6.6.1.4 Tape Samples - 305 mm (12 in) long strips of tape 1/2 as thick as the width.

EXAMPLE: 10 mm (3/8 in) x 5 mm (3/16 in) or 12 mm (1/2 in) x 6 mm (1/4 in). A round or square bead of

6 mm (1/4 in) diameter minimum shall be acceptable.

6.6.2 Procedure

The bead of tape shall be applied to the metal panel so that it makes a "U" shaped trough 25 mm (1 in)

from three sides. The glass panel shall be placed on the tape parallel to the aluminum panel. The tape

shall be compressed 50% between the glass and aluminum. Nylon reinforced strapping tape shall be

wrapped around the sandwiched panel, 1/3 of the distance from either end in order to hold the

compression of the tape. Allow to stand for one hour. Fill with water, stand vertical for 21 days at 25°C ±

3°C (77°F ± 5°F).

6.7 TEST METHOD FOR BACKING REMOVAL

6.7.1 Test according to ASTM C879 except as follows.

6.7.2 Use Procedure Alternative A, "Ambient-Temperature Testing."

6.7.3 Do not consider any transfer or residue of tape onto the paper or support as a failure.


7.1 Tape Sampling

The tape to be tested shall be taken directly from a randomly selected container as commercially supplied

by the manufacturer. The container shall be full and not previously opened. The testing shall be

completed within the shelf-life recommended by the manufacturer. The tape manufacturer's instructions

giving any options allowed in the test methods shall be obtained along with the sealant sample.

7.2 How to Evaluate Results





If the tape fails the specific retest, a new sample shall be submitted and all the requirements of the


7.3 Substrate Preparation















7.4 COMPATIBILITY











2. Procedure

Apply a 6 mm (1/4 in) wide 50 mm (2 in) long tape to one 100 mm (4 in) piece of material to be

evaluated. Immediately place the test strip (tape applied) plus one 100 mm (4 in) piece of specimen

(with no tape applied) in separate beakers and cover with watch glasses. Condition for 24 hours at

25°C ± 3°C (77°F ± 5°F) then place beakers and strips in a 82°C ± 3°C (180°F ± 5°F) air circulating

oven for 72 hours. After 72 hours exposure in the oven, remove the material from the oven and

condition to 25°C ± 3°C (77°F ± 5°F) for a minimum of one hour. The material being tested shall not

be evaluated until its temperature has been determined to be 25°C ± 3°C (77°F ± 5°F). Evaluate

the compatibility of the tape by reporting any differences between the plastic bead or accessory

with tape applied and that without tape. Observe the tapes and substrates for discoloration,

staining, tackiness, softening or crazing.






2. Procedure

Apply test tape approximately 6 mm (1/4 in) thick to the surface of the edge of two adjacent sides of

three laminated glass pieces being sure to cover bond line (interface of glass and laminate).

Immediately place three specimens with test strip (tape applied) plus three specimens (with no tape

applied) in separate beakers and cover with watch glasses. Condition for 24 hours at 25°C ± 3°C

(77°F ± 5°F) then place beakers and strips in a 82°C ± 3°C (180°F ± 5°F) air circulating oven for 72

hours. After 72 hours exposure in the oven, remove the material from the oven and condition to

25°C ± 3°C (77°F ± 5°F) for a minimum of one hour. The material being tested shall not be

evaluated until its temperature has been determined to be 25°C ± 3°C (77°F ± 5°F). When

compared to the control (specimens without tape) there shall be no differences in fogging,

separation, discoloration or cracking.

7.5 RS/UV Lamp Alternative

The following described lamp sources shall be permitted for use.


7.5.1 UV Source







7.5.2 RS lamp Source



500 hours use.

NOTE 64: Due to the discontinuation of manufacture, the RS Sunlamp specified in these test methods

may not be available for use. In the event the RS Sunlamp is not available, the UV source shall be used.



AAMA 800, 803.3-XX

DRAFT #2

DATED 6/3/15


Sealants Narrow Joint Seam Sealers

AAMA 803.3





AAMA 800-XX, BBGC, Draft #3, Dated 6/18/14 Page 1

TABLE OF CONTENTS



FOREWARD


Sealants. These narrow joint sealers may have other applications within the fenestration industry

however this specification primarily addresses non-structural, mechanically-restricted, in-shop

applications.

1.0 SCOPE

To provide a minimum level of performance for narrow joint seam sealers that are pumpable and flowable

at application temperature.

1.1 These compounds shall be classified as:

1.1.1 803.3 (Type I) Non-Sag Narrow Joint Seam Sealers are elastic or ductile compounds which have no

more than 2.5 mm (0.1 in) slump.

1.1.2 803.3 (Type II) Self-Leveling Narrow Joint Seam Sealers are elastic or ductile compounds which

have a slump greater than 2.5 mm (0.1 in).



2.0 PURPOSE

2.1 This document is intended to assist the window manufacturer to specify and obtain narrow joint seam

sealers meeting minimum performance criteria.












ASTM C734-06, Standard Test Method for Low-Temperature Flexibility of Latex Sealants After Artificial

Weathering

ASTM C794-10, Standard Test Method for Adhesion in Peel of Elastomeric Joint Sealants




4.0 DEFINITIONS

For all definitions, please refer to AAMA Glossary (AG-13).

5.0 GENERAL


herein.

Test Number Requirement Type I Type II

6.1 Visual

Screening • Nosurface cracks

• bond loss

• staining

• vehicle bleed

No:

• surface cracks

• bond loss

• staining

• vehicle bleed

6.2 Hardness

Evaluation

70 Maximum 70 Maximum

6.3 Peel Adhesion

≥ 0.88 N/mm

(5 lbf/in)

≥ 90% Cohesive Failure (

both prior to and after

water immersion)

≥ 0.88 N/mm (5 lbf/in)

≥ 90% Cohesive Failure

(both prior to and after

water immersion)


6.4 Slump ≤ 2.5 mm (0.1 in) > 2.5 mm (0.1 in)

6.5 Vehicle

Migration

None allowed None allowed

6.6 Low

Temperature

Flexibility

No cracks and/or no loss

of adhesion

No cracks and/or no loss

of adhesion

6.7 Water

Resistance

No voids, cracks,

separation or breakdown

No voids, cracks,

separation or breakdown

6.8 Racking No cohesive breaks or

loss of adhesion

No cohesive breaks or

loss of adhesion

6.0 TESTS

6.1 Test Method For Basic Visual Screening


6.1.1.1 Eighteen standard etched and anodized (AA M10 C22 A31) aluminum panels 85 mm x 170 mm x

0.1 mm thick (3 3/8 in x 6 3/4 in x 1/32 in thick).


6.1.1.3 Air circulating oven capable of maintaining a temperature of 82°C ± 3°C (180°F ± 5°F).

6.1.1.4 RS type sun lamp with no more than 500 hours total burning time. For an alternative UV source

(see Section 3.8).


6.1.2.1 Clean the panels by the procedure outlined in Section 3.5.

6.1.3 Specimen Preparation

6.1.3.1 Use masking tape to assemble two panels into a "T" shaped right angle fixture. Apply two 3 mm

(1/8 in) diameter beads of sealant, one each, along the length of both corner joints formed where the

panels meet. Be careful to make each bead contact both panels along the entire length. Prepare a total of

nine specimens. Allow the specimens to cure for seven days at 25°C ± 3°C (77°F ± 5°F).



6.1.4.1 Sample No. 1a (three assemblies)

25°C ± 3°C (77°F ± 5°F) for 21 days.

6.1.4.2 Sample No. 1b (three assemblies)

82°C ± 3°C (180°F ± 5°F) for 14 days.

6.1.4.3 Sample No. 1c (three assemblies)

RS type of sun lamp positioned approximately 405 mm (16 in) above the sealant surface so that a surface

temperature of 60°C ± 6°C (140°F ± 10°F) is maintained. Lamps shall be replaced after 500 hours use.

Lamp exposure period is 21 days. For an alternative UV source (see Section 3.8).

6.1.5 Specimen Evaluation

6.1.5.1 After the above exposures, report any cracks, voids, discoloration or bond loss. Identify the

samples as 1a, 1b or 1c according to their exposure.

6.1.5.2 Optional - Save the three assemblies exposed at 82°C ± 3°C (180°F ± 5°F) for the Racking Test

(see Section 2.12).

6.2 Test for Hardness

Use ASTM C661 for preparing and evaluating a total of nine test specimens. However, use the cure and

exposure conditions outlined below.




6.2.1.2.1 Sample No. A

25°C ± 3°C (77°F ± 5°F) for 21 days.

6.2.1.2.2 Sample No. B



6.2.1.1.2.3 Sample No.C

RS type sun lamp positioned approximately 405 mm (16 in) above the sealant surface so that a surface




6.2.2.1 After exposure, condition all nine specimens to 25°C ± 3°C (77°F ± 5°F). Determine the

instantaneous hardness for each exposure by averaging nine readings (3 per specimen). Report the

results as sample A, B or C according to their exposure.



6.3.1.1 Six standard etched and anodized (AA M10 C22 A31) aluminum panels 85 mm (3 3/8 in) x 170

mm (6 3/4 in) x 0.8 mm (1/32 in) thick.




6.3.1.5 Twelve 25 mm (1 in) x 200 mm (8 in) strips of desized grade A airplane fabric, 121 g/m (4.28

oz/yd), 80/84 count (see Section 3.4) .


6.3.1.7 Testing machine with tension grips capable of pulling at a rate of separation of 50 mm (2 in) per

minute with a dial or chart indicator calibrated in 4.4 N (1 lbf) units.





6.3.2.1 Use ASTM C794 to prepare panels and specimens. The following alternative specimen size may

be used. (See also Figures 1 thru 8 which follow.)

Inside Dimensions

Total Thickness

Top Section

Bottom Section

35 mm (1.4 in) wide by 130 mm (5 in) long

4 mm (0.16 in)

2 mm (0.08 in)

2 mm (0.08 in)


Expose the test panels as follows after a seven-day conditioning period at 25°C ± 3°C (77°F ± 5°F).


Two piece jig frame of proper thickness showing slotted ribbon channel guide. See dimensioned drawing.




FIGURE 1 - Fixture

Test compound/sealant being applied to substrate through bottom section of jig panel frame.





Coated (buttered) ribbon being placed on lower half of uncured test material. Ribbon is now aligned with

slot in lower jig frame.






Carefully lift off lower guide jig. Follow the recommended cure cycle in AAMA 800-XX Section 6.3.3.



Cut through cured sealant to panel. Metal guide is utilized for 25mm (1”) wide cut. Guide is in plane with

ribbon

Thin polyethylene film being placed on back of cured sealant. This reduces false readings when 180

degree pull is executed (eliminates drag of sealant to sealant).

Undercut the compound to produce separation at the interface in conjunction with Section 6.3.4.2.

(NOTE 1: Picture shows optional method which laboratories may use where undercuts are made to

substrate during pull.)




25°C ± 3°C (77°F ± 5°F) - 21 days


82°C ± 3°C (180°F ± 5°F) - 14 days


25°C ± 3°C (77°F ± 5°F) - 21 days


82°C ± 3°C (180°F ± 5°F) - 14 days


6.3.4.1 Immediately following the specimen exposures described in Section 6.3.3, allow the specimens B

and D to be conditioned to 25°C ± 3°C (77°F ± 5°F) for a minimum of one hour or until the specimen

temperature measures 25°C ± 3°C (77°F ± 5°F). When all specimens have reached 25°C ± 3°C (77°F ±

5°F), make two cuts per panel with a sharp blade, cutting completely through to the substrate surface and

being careful not to cut the peel cloth strip. Cuts shall be exactly 25 mm (1 in) apart.

6.3.4.2 Cover the sealant with a polyethylene strip before placing in the tensile testing machine. This will

allow the material coated peel strip to be pulled parallel (or 180° to the sealant) at a rate of 50 mm (2 in)

per minute. Peel the sealant approximately 12 mm (1/2 in) and then cut sealant to the substrate to which

it is attached. (Undercut the compound to produce separation at the interface.) Peel only one-half the

length of each test panel and record the results. Immerse the half-peeled panels in tap water at 25°C ±

3°C (77°F ± 5°F) for seven days. At the end of seven days remove the panels and continue the test on

the remaining water-conditioned compound.




6.4.2 PROCEDURE





modifications:










mm (1/4 in) thick.











mm (6 3/4 in) x 0.8 mm (1/32 in) thick.






6.7.2 Procedure





















final evaluation.

6.8 TEST METHOD FOR RACKING



mm (6 3/4 in) x 0.8 mm (1/32 in) thick.

6.8.1.2 Masking tape, 12 mm (1/2 in) wide.

6.8.1.3 Air circulating oven capable of maintaining a temperature of 82°C ± 3°C (180°F ± 5°F).


6.8.2.1 Clean the panels by the procedure outlined in Section 7.5.


6.8.3 Specimen Preparation

6.8.3.1 Use masking tape to assemble two panels into a "T" shaped angle fixture. Apply two 3 mm (1/8 in)

diameter beads of sealant, one each along the length of both corner joints formed where the panels meet.

Be careful to make each bead contact both panels along the entire length. Prepare a total of three

specimens. Allow the specimens to cure for seven days at 25°C ± 3°C (77°F ± 5°F).


6.8.4.1 Place in an air circulating oven at 82°C ± 3°C (180°F ± 5°F) for 14 days.

6.8.5 Specimen Evaluation

6.8.5.1 Cool to ambient temperature 25°C ± 3°C (77°F ± 5°F). Flex the assemblies through a 10° arc from

center, once in both directions in less than three seconds.

NOTE 3: Assemblies from basic visual screening of narrow joint seam sealers may be used.


7.1 SEALANT SAMPLING The sealant to be tested shall be taken directly from a randomly selected container as commercially




sample.

7.2 HOW TO EVALUATE RESULTS After testing, examine each group of specimens representing a given test. Should any one specimen be





7.3 OPTIONAL CURE, PRE-CURE OR PRE-CONDITIONING OF TEST SPECIMENS PRIOR TO EXPOSURE CONDITIONS


The curing conditions for a test specimen prior to test requirement exposure; i.e.,

82°C ± 3°C (180°F ± 5°F) for 14 days, may require moisture and/or oxygen to facilitate a cure. Also, some

compounds may require a step-type temperature gradation for elimination of solvents prior to test

exposure. The following conditions are examples of such options.






5°F).


5°F).






cure.

7.4 PEEL ADHESION PREPARATION ASTM C794 specifies a peel strip material of desized, Grade A, Airplane Cloth, 121 g/m (4.28 oz/yd),

80/84 count.

The sealant manufacturer is permitted to specify other types of strip material to insure adequate adhesion

between the strip and the sealant. Other fabrics, foils or screens are permitted to be used. The peel strip

material shall be described and noted on the test report.

7.5 SUBSTRATE PREPARATION Unless cleaning instructions are given in the individual test method, clean all metal and glass test





















the testing report.

7.7 COMPATIBILITY











2. Procedure











crazing.






2. Procedure












The following described lamp sources shall be permitted for use .


7.8.1. UV Source










500 hours use.





AAMA 800-XX

DRAFT #3

DATED 7/23/15

AAMA 800 Sealant Manual Section 5

Exterior Perimeter Sealing Compound AAMA 808.3






TABLE OF CONTENTS



FOREWARD


Sealants. These exterior perimeter sealing compounds may have other applications within the

fenestration industry however this specification primarily addresses non-structural, field applications.

1.0 SCOPE

1.1 This specification is limited to pumpable and gunnable compounds that are used to install windows and

sliding glass doors. These compounds should remain elastic or ductile in order to prevent air infiltration and

water leakage through the anticipated service life of the joint per sealant manufacturers’ specification. The

tests provided in this AAMA standard include durability and serviceability in order to evaluate the long term

performance of the compounds.

• 808.3 (Type I) Sealing Compounds are limited to pumpable and gunnable compounds.

• 808.3 (Type II) Sealing Compounds are limited to preformed, 100% solids, ductile, extruded, or

calendared mastic type tapes.



2.0 PURPOSE

2.1 This document is intended to assist the window manufacturer to specify and obtain exterior perimeter

sealant compounds meeting minimum performance criteria. This specification covers sealing compound

requirements but does not cover the installation process or proper use of materials.

NOTE 1: While these products may meet AAMA 808.3, it may be advisable to test these materials on

additional substrates for adhesion, compatibility, and staining per project specification.












ASTM C718-93, Standard Test Method for Ultraviolet (UV)-Cold Box Exposure of One-Part, Elastomeric,

Solvent- Release Type Sealants


Weathering



4.0 DEFINITIONS

4.1 Please refer to AAMA Glossary (AG-13) for all definitions except for those appearing below (which

apply only to this specification).

4.2 Perimeter sealing compounds - seal the joint between the building construction materials and

fenestration products and are intended to remain elastic or ductile and to permit moderate movement

without bond failure.

5.0 GENERAL

5.1 To qualify as meeting this specification, Type I products tests shall meet all requirements as specified

herein.

Test Number Requirement Value

6.1 Basic Visual Screening No surface cracks or bond loss, excessive dirt pick-up is

allowed, slight chalking is allowed

6.2 Hardness Evaluation Not to exceed 55

6.3 Peel Adhesion 75% cohesive failure of at least 0.88 N/mm (5 lbf/in) of

width

6.4 Slump No to exceed 2.5mm (0.1 in)

6.5 Vehicle Migration No migration from compound edge, contact stain through


paper is allowed

6.6 Low Temperature Flexibility No cracks or loss of adhesion

6.7 Staining No discolor and/or stain concrete or wood beyond

applied bond line

6.8 Water Resistance No presence of voids, cracks, separation or breakdown

of the compound

5.2 To qualify as meeting this specification, Type II products tests shall meet all requirements as specified

herein.


6.9 Basic Visual Screening No surface cracks or bond loss

6.10 Hardness Evaluation Not to exceed 60 after aging tests and not to increase

more than 30% over original value

6.11 Yield Strength 41.1 kPa (6 psi) minimum both initial and heat aged

6.12 Sag No to exceed 1.6 mm (0.06 in)

6.13 Vehicle Migration No migration from compound edge when tested in

accordance with 6.XX.XXX

Shall not exceed 3 mm (0.12 in) from edge of tape when

tested in accordance with 6.13.3


6.15 Water Resistance No presence of voids, cracks separation or breakdown of

tape

6.16 Backing Removal Complete removal, backing paper shall not tear or

adhere to tape

6.0 TESTS

6.1 TEST METHOD FOR BASIC VISUAL SCREENING

6.1.1 Prepare six test specimens in accordance with ASTM C 718 using 75 mm (3 in) long – inside

measurement of 12 mm (1/2 in) wide x 9 mm (3/8 in) deep mill finish aluminum channels.

6.1.2 Condition the specimens for seven days at 25°C ± 3°C (77°F ± 5°F) before proceeding with the

following exposures.

NOTE 2: The masking tape shall be removed from the ends within 72 hours after filling.


6.1.2.1 Sample No. 1a (three channel assemblies)

25°C ± 3°C (77°F ± 5°F) - 21 days exposure.

6.1.2.2 Sample No. 1b (three channel assemblies)

Air circulating oven held at 82°C ± 3°C (180°F ± 5°F) - 14 days exposure.

6.1.3 After exposure, examine for surface cracks, bond loss, staining and vehicle bleed.

6.2 TEST FOR HARDNESS

Use ASTM C661 for preparing and evaluating a total of nine test specimens. However, use the cure and

exposure conditions outlined below.




6.2.1.2.1 Sample No. A

25°C ± 3°C (77°F ± 5°F) for 21 days.

6.2.1.2.2 Sample No. B


6.2.1.1.2.3 Sample No.C

RS type sun lamp positioned approximately 405 mm (16 in) above the sealant surface so that a surface




6.2.2.1 After exposure, condition all nine specimens to 25°C ± 3°C (77°F ± 5°F). Determine the

instantaneous hardness for each exposure by averaging nine readings (3 per specimen). Report the

results as sample A, B or C according to their exposure.





mm (6 3/4 in) x 0.8 mm (1/32 in) thick.




6.3.1.5 Twelve 25 mm (1 in) x 200 mm (8 in) strips of desized grade A airplane fabric, 121 g/m (4.28

oz/yd), 80/84 count (see Section 3.4) .


6.3.1.7 Testing machine with tension grips capable of pulling at a rate of separation of 50 mm (2 in) per

minute with a dial or chart indicator calibrated in 4.4 N (1 lbf) units.




6.3.2.1 Use ASTM C794 to prepare panels and specimens. The following alternative specimen size may

be used. (See also Figures 1 thru 8 which follow.)

Inside Dimensions

Total Thickness

Top Section

Bottom Section

35 mm (1.4 in) wide by 130 mm (5 in) long

4 mm (0.16 in)

2 mm (0.08 in)

2 mm (0.08 in)


Expose the test panels as follows after a seven-day conditioning period at 25°C ± 3°C (77°F ± 5°F).



Two piece jig frame of proper thickness showing slotted ribbon channel guide. See dimensioned drawing.




FIGURE 1 - Fixture

Test compound/sealant being applied to substrate through bottom section of jig panel frame.





Coated (buttered) ribbon being placed on lower half of uncured test material. Ribbon is now aligned with

slot in lower jig frame.






Carefully lift off lower guide jig. Follow the recommended cure cycle in AAMA 800-XX Section 6.3.3.



Cut through cured sealant to panel. Metal guide is utilized for 25mm (1”) wide cut. Guide is in plane with

ribbon

Thin polyethylene film being placed on back of cured sealant. This reduces false readings when 180

degree pull is executed (eliminates drag of sealant to sealant).

Undercut the compound to produce separation at the interface in conjunction with Section 6.3.4.2. (NOTE

1: Picture shows optional method which laboratories may use where undercuts are made to substrate

during pull.)




25°C ± 3°C (77°F ± 5°F) - 21 days


82°C ± 3°C (180°F ± 5°F) - 14 days


25°C ± 3°C (77°F ± 5°F) - 21 days


82°C ± 3°C (180°F ± 5°F) - 14 days


6.3.4.1 Immediately following the specimen exposures described in Section 6.3.3, allow the specimens B

and D to be conditioned to 25°C ± 3°C (77°F ± 5°F) for a minimum of one hour or until the specimen

temperature measures 25°C ± 3°C (77°F ± 5°F). When all specimens have reached 25°C ± 3°C (77°F ±

5°F), make two cuts per panel with a sharp blade, cutting completely through to the substrate surface and

being careful not to cut the peel cloth strip. Cuts shall be exactly 25 mm (1 in) apart.

6.3.4.2 Cover the sealant with a polyethylene strip before placing in the tensile testing machine. This will

allow the material coated peel strip to be pulled parallel (or 180° to the sealant) at a rate of 50 mm (2 in)

per minute. Peel the sealant approximately 12 mm (1/2 in) and then cut sealant to the substrate to which

it is attached. (Undercut the compound to produce separation at the interface.) Peel only one-half the

length of each test panel and record the results. Immerse the half-peeled panels in tap water at 25°C ±

3°C (77°F ± 5°F) for seven days. At the end of seven days remove the panels and continue the test on

the remaining water-conditioned compound.




6.4.2 PROCEDURE








modifications:










mm (1/4 in) thick.








6.7 TEST METHOD FOR STAINING


6.7.1.1 Six mortar blocks, 150 mm (6 in) x 75 mm (3 in) x 25 mm (1 in) thick made with the following

composition: One-part by weight White Portland Cement, 0.25-part hydrated lime, 4-parts Ottawa Sand

graded conforming to Section 6 of ASTM C 109 and enough water to make a smooth, non-flowable paste.

6.7.1.2 Six wood blocks, 150 mm (6 in) x 75 mm (3 in) x 25 mm (1 in) thick Douglas Fir, straight-grained,

knot free and untreated.

6.7.1.3 Aluminum or brass frame with inside dimensions of 130 mm (5 in) x 40 mm (1 1/2 in) x 6 mm (1/4

in) thick.

6.7.1.4 A 2000 ml (122 in3) beaker.

6.7.1.5 Distilled Water

6.7.1.6 RS type sun lamp with no more than 500 hours total burning time. For an alternative UV source,

see Section 3.8.

6.7.2 SPECIMEN PREPARATION


6.7.2.1 Center the metal frame on one of the mortar blocks. Fill the frame with sealant and strike off the

excess with a spatula. Run a think knife blade or straightened paper clip along the inside edges of the

frame and lift the frame from the sealant. Repeat this procedure on two additional mortar blocks and three

wood blocks. Condition the specimens for seven days at 25°C ± 3°C (77°F ± 5°F).

6.7.3 SPECIMEN EXPOSURE

6.7.3.1 Place the six specimens a prepared in Section 2.10.2.1 along with the three mortar and three

wood blocks without sealant under the RS sun lamp. Position the lamp approximately 410 mm (16 in)

above the compound surface so that a temperature of 60°C ± 6°C (140°F ± 10°F) is maintained. Each

working day remove all the blocks from under the lamp, cool to 25°C ± 3°C (77°F ± 5°F), and immerse

them in distilled water for five minutes, drain them dry and immediately place them back under the RS

lamp. This process shall be repeated five days per week until the completion of 14 working days. For an


6.7.4 SPECIMEN EVALUATION

6.7.4.1 Compare the six blocks with sealant to the six blocks without sealant. Observe the mortar and

wood for discoloration or staining beyond the edges of applied sealant. Disregard any discoloration or

staining which also occurs on the blocks without sealant.




mm (6 3/4 in) x 0.8 mm (1/32 in) thick.







6.8.2 Procedure




















final evaluation.

6.9 TEST FOR BASIC VISUAL SCREENING

6.9.1 Test according to ASTM C 772 except as follows:


In addition to those items required by ASTM C 772, provide the following:



6.9.3 Procedure


6.9.3.1 Sample No. 8a


6.9.3.2 Sample No. 8b


6.9.3.3 Sample No. 8c





6.9.4.1 In addition to the procedures required in ASTM C 772, perform the following:

6.9.4.2 Examine the exposed surfaces of the tape for cracks or other visually observable deterioration of

the tape surface.

6.10 TEST METHOD FOR HARDNESS EVALUATION


6.10.1.1 In addition to those items required by ASTM C 661, provide the following.


Square beads shall be acceptable.


6.10.1.4 Shore "OO" Hardness Instrument.

6.10.2 Procedure


6.10.2.1 Two tape test specimens shall be formed 125 mm (5 in) x 38 mm (1 1/2 in) x 6 mm (1/4 in) on

aluminum plates by plying individual lengths of tape.

6.10.2.2 Condition one test specimen for 21 days at 25°C ± 3°C (77°F ± 5°F) and the second specimen

for 21 days at 82°C ± 3°C (180°F ± 5°F).

6.10.2.3 At the end of 21 days conditioning, remove the second specimen from the oven and allow to cool

to 25°C ± 3°C (77°F ± 5°F) for a minimum of four hours.

6.10.3 Testing

6.10.3.1 804.3 and 807.3 Tapes

6.10.3.1.1 Use the Shore "OO" test according to ASTM C 661 procedure for taking hardness readings.

6.10.3.2 806.3 Tapes

6.10.3.2.1 Use the Shore "A" test according to ASTM C 661 procedure for taking hardness readings.

6.10.4 Reporting

6.10.4.1 Report the average value of the three readings for each test specimen.

6.11 TEST METHOD FOR YIELD STRENGTH – PREFORMED TAPES


6.11.2 Materials Required - In addition to those materials required in ASTM C 908, provide the following:

6.11.2.1 Four glass plates as described in Section 3.1 of ASTM C 908.

6.11.2.2 Four standard etched and anodized aluminum (AA M10 C22 A31) panels 75 mm (3 in) x 75 mm (3

in) thick x 6 mm (1/4 in) thick.



6.11.2.4 Rule graduated in 1 mm (1/32 in) increments.

6.11.3 TEST SPECIMENS

6.11.3.1 Prepare four test specimens using aluminum plates in place of steel.

6.11.3.2 Test according to Section 9 of ASTM C 908.

6.11.4 CONDITIONING

6.11.4.1 Condition two test specimens for 24 hours at 25°C ± 3°C (77°F ± 5°F).

6.11.4.2 Condition two test specimens for 14 days at 82°C ± 3°C (180°F ± 5°F).

6.11.5 PROCEDURE

6.11.5.1 Record the average width of the contact area of the tape to the plate glass as measured to the

nearest 1 mm (1/32 in).

6.11.6 CALCULATIONS

6.11.6.1 For each specimen, calculate the tensile yield strength in N (lbf) as follows:

Yield Strength = F/A

Where:

F = peak tension load recorded in N (lbf)

A = area recorded in m² (in²)

A1= Measure area of adhesive failure, if any, to each Substrate

Calculate percent of cohesive separation (C.S.):

C.S. = (A – A1)

(100) A

6.11.7 REPORT


6.11.7.1 The report shall include the following:

6.11.7.1.1 Yield strength in N/m2 (lbf/in2) of each specimen after conditioning.

6.11.7.1.2 Percent of cohesive separation (C.S.).

6.11.7.2 Type of tension testing machine used (hydraulic, mechanical).

6.11.7.3 Substrates and primers used.

6.12 TEST METHODS FOR SAG


6.12.1.1 Three standard etched and anodized aluminum (AA M10 C22 A31) panels 85 mm (3 3/8 in) x

170 mm (6 3/4 in) x 0.8 mm (1/32 in) thick.


Square tapes shall be acceptable. In addition, 0.8 mm (1/32 in) thickness shall be acceptable for 806.3,

Back Bedding Glazing Tape.

6.12.1.3 Metal scribe.


6.12.2 Procedure

Scribe two lines 3 mm (1/8 in) apart; near the center of the panel on the face of the aluminum panel

parallel to the long 170 mm (6 3/4 in) side. Place tape on the panel in such a way that one long edge is

coincident with one line (leaving the other line exposed). Press tape lightly to insure contact. Immediately

place in air circulating oven at 82°C ± 3°C (180°F ± 5°F) for 14 days. The lower scribed line shall be

parallel to the bottom of the oven during the exposure and the plane of the panel shall be vertical. Check

the sample every day for the first seven days. Check at the end of 14 days. Measure the amount of sag.





In addition to those items required by ASTM C 772, provide the following:


6.13.3 Procedure


6.13.3.1 Sample No. 8a


6.13.3.2 Sample No. 8b


6.13.3.3 Sample No. 8c





6.13.4.1 In addition to the procedures required in ASTM C 772, perform the following:

6.13.4.2 Examine the exposed surfaces of the tape for cracks or other visually observable deterioration of

the tape surface.



6.14.2 Tape to be tested shall be 3 mm (1/8 in) to 6 mm (1/4 in) thick x 6 mm (1/4 in) to 12 mm (1/2 in)

wide. Square tapes shall be acceptable.

6.14.3 Test shall be performed at -18°C ± 3°C (0°F ± 5°F).

6.14.4 Procedure


6.14.4.1 Scrub the aluminum panels with a cleaning solvent. Repeat procedure with a rinsing solvent. Dry

wipe each panel insuring no solvent or lint remains. Place the test specimen on each panel (leaving the

release liner on) and roll with the PSTC roller once in each direction at a rate of 305 mm/min (12 in/min).

Carefully remove the release liner.

6.14.4.2 Place the panels and the mandrel in the deep freeze unit for 24 hours at -18°C ± 3°C (0°F ± 5°F).

Ensure that nothing touches or rests on the test specimens during this conditioning period.

6.14.4.3 While keeping the mandrel and panels in the deep freeze unit, bend each panel 180o around the

mandrel away from the tape using no more than one second to make the bend.



6.15.1.1 One standard etched and anodized (AA M10 C22 A31) aluminum panel 85 mm (3 3/8 in) x 170

mm (6 3/4 in) x 0.8 mm (1/32 in) thick.

6.15.1.2 Air circulating oven capable of maintaining a temperature of 82°C ± 3°C (180°F ± 5° F).

6.15.1.3 One single strength glass panel 85 mm (3 3/8 in) x 170 mm (6 3/4 in).

6.15.1.4 Tape Samples - 305 mm (12 in) long strips of tape 1/2 as thick as the width.

Example: 10 mm (3/8 in) x 5 mm (3/16 in) or 12 mm (1/2 in) x 6 mm (1/4 in). A round or square bead of 6

mm (1/4 in) diameter minimum shall be acceptable.

6.15.2 Procedure

The bead of tape shall be applied to the metal panel so that it makes a "U" shaped trough 25 mm (1 in)

from three sides. The glass panel shall be placed on the tape parallel to the aluminum panel. The tape

shall be compressed 50% between the glass and aluminum. Nylon reinforced strapping tape shall be

wrapped around the sandwiched panel, 1/3 of the distance from either end in order to hold the

compression of the tape. Allow to stand for one hour. Fill with water, stand vertical for 21 days at 25°C ±

3°C (77°F ± 5°F).

6.16 TEST METHOD FOR BACKING REMOVAL


6.16.1 Test according to ASTM C 879 except as follows.

6.16.2 Use Procedure Alternative A, "Ambient-Temperature Testing."

6.16.3 Do not consider any transfer or residue of tape onto the paper or support as a failure.







sample.








EXPOSURE CONDITIONS

The curing conditions for a test specimen prior to test requirement exposure; i.e., 82°C ± 3°C (180°F ±

5°F) for 14 days, may require moisture and/or oxygen to facilitate a cure. Also, some compounds may

require a step-type temperature gradation for elimination of solvents prior to test exposure. The following

conditions are examples of such options.







5°F).


5°F).






cure.























the testing report.

7.5 COMPATIBILITY










2. Procedure











crazing.







2. Procedure












The following described lamp sources shall be permitted for use.

7.6.1. UV Source










500 hours use.



8.0 Specifier Guidelines and End User Responsibility


8.1 Specifier Guidelines

The following information provides guidance on criteria that should be considered for incorporation into

specifications. Where applicable the following can be inserted into the project specifications. If required,

the sealant manufacturer shall provide product submittals for the sealant that are used in perimeter

sealing applications.

8.1.1 Include information regarding use of sealant for exterior applications to withstand limited or

prolonged UV exposure. Although there is no substitution of natural sunlight for weathering, there are

many accepted methods used for accelerated weathering. Some methods include ASTM C1442, ASTM

C732 and ASTM C793.

8.1.2 Include information regarding the movement capability of the sealant when tested in accordance

with ASTM C719.

NOTE 9: The sealant shall be specified such that the movement of the joint does not exceed the

movement capability of the sealant. Common classes of the sealant are as follows:

± 12.5%,

± 25%,

± 35%

± 50%

+100/-50%

8.1.3 Include information regarding the chemical compatibility of the sealant.

8.2 End User Responsibility

The End User is required to determine chemical compatibility to the substrates in the application.

Sealants used in the installation of fenestration products may adversely affect the substrates and other

compounds used. Interactions between the sealant and its adjacent materials may cause aesthetic or

chemical changes in any of these materials. Therefore, the user shall be responsible for affirming the

suitability of the sealant tested to this specification within their installation.



AAMA 800, NDS-XX

DRAFT #2

DATED 6/3/15


Sealants Non-Drying Sealant

AAMA 809.2





AAMA 800-XX, BBGC, Draft #3, Dated 6/18/14 Page i

TABLE OF CONTENTS

FOREWARD ................................................................................................. Error! Bookmark not defined. 1.0 SCOPE .................................................................................................... Error! Bookmark not defined. 2.0 PURPOSE ............................................................................................... Error! Bookmark not defined. 3.0 REFERENCED DOCUMENTS ............................................................... Error! Bookmark not defined. 4.0 DEFINITIONS ......................................................................................... Error! Bookmark not defined. 5.0 GENERAL ............................................................................................... Error! Bookmark not defined. 6.0 TESTS ..................................................................................................... Error! Bookmark not defined. 7.0 LABORATORY TEST METHOD NOTES ............................................... Error! Bookmark not defined.


FOREWARD


Sealants. These non-drying may have other applications within the fenestration industry however this

specification primarily addresses non-structural, in-shop glazing applications.

1.0 SCOPE

1.1 This specification is limited to pumpable and gunnable compounds that are intended to be used as buck

frame sealants, threshold sealants and "buttering" sealants. These compounds remain tacky and are non-

drying. They are intended to prevent air infiltration and water leakage through the sealant. These non-drying

compounds remain pliable and tacky and are intended for use in sealing hidden joints.



2.0 PURPOSE

2.1 This document is intended to assist the window manufacturer to specify and obtain non-drying sealant

compounds meeting minimum performance criteria.










Weathering






4.0 DEFINITIONS

For all definitions, please refer to AAMA Glossary (AG-13).

5.0 GENERAL


herein.


6.1 Basic Visual Screening No surface cracks or bond loss, excessive

dirt pick-up is allowed

6.2 Vehicle Migration No migration in excess of 1.6mm (1/16 in)

from compound edge


6.4 Water Resistance No presence of voids, cracks, separation

or breakdown of compound

6.5 Slump No to exceed 2.5mm (0.1 in)

5.1 Basic Visual Screening There shall be no surface cracks or bond loss in any of the six samples when tested in accordance with

Section 6.1. Excessive dirt pick-up on the sealant surface shall be permitted.

5.2 Vehicle Migration There shall be no vehicle migration in excess of 1.6 mm (1/16 in) from the compound edge when tested in

accordance with ASTM D 2203 as modified in Section 6.2.

5.3 Low Temperature Flexibility The compound when tested in accordance with ASTM C 734 as modified in Section 6.3 shall not have

cracks and/or no loss of adhesion from the test panel.

5.4 Water Resistance There shall be no presence of voids, cracks, separation or breakdown of the compound when tested in

accordance with Section 6.4.


5.4.5 Slump The compound shall have a slump of not more than 2.5 mm (0.1 in) when tested in accordance with

ASTM D 2202 as modified in Section 6.5.

6.0 TESTS

2.1 TEST METHOD FOR BASIC VISUAL SCREENING 2.1.1 Prepare six test specimens in accordance with ASTM C 718 using 75 mm (3 in) long – inside

measurement of

12 mm (1/2 in) wide x 9 mm (3/8 in) deep mill finish aluminum channels.

2.1.2 Condition the specimens for seven days at 25°C ± 3°C (77°F ± 5°F) before proceeding with the

following exposures.

NOTE 1: The masking tape shall be removed from the ends within 72 hours after filling.

2.1.2.1 Sample No. 1a (three channel assemblies)

25°C ± 3°C (77°F ± 5°F) - 21 days exposure.

2.1.2.2 Sample No. 1b (three channel assemblies)

Air circulating oven held at 82°C ± 3°C (180°F ± 5°F) - 14 days exposure.

2.1.3 After exposure, examine for surface cracks, bond loss, staining and vehicle bleed.



modifications:


6.2.1.1.1 The specimen shall be allowed to cure for seven days at 25°C ± 3°C

(77°F ± 5°F). Then place the specimen in an air circulating oven for 14 days maintaining a temperature of

82°C ± 3°C (180°F ± 5°F). After exposure observe for vehicle migration from the edge of the compound.






mm (1/4 in) thick.










6.4.1.1 Three standard etched and anodized (AA M10 C22 A31) aluminum panels

85 mm (3 3/8 in) x 170 mm (6 3/4 in) x 0.8 mm (1/32 in) thick.






6.4.2 Procedure





















final evaluation.




6.5.2 PROCEDURE













sample.








EXPOSURE CONDITIONS

The curing conditions for a test specimen prior to test requirement exposure; i.e.,

82°C ± 3°C (180°F ± 5°F) for 14 days, may require moisture and/or oxygen to facilitate a cure. Also, some

compounds may require a step-type temperature gradation for elimination of solvents prior to test

exposure. The following conditions are examples of such options.






5°F).


5°F).







cure.






















the testing report.


7.5 COMPATIBILITY





NOTE 11: Several alternative test methods are available from ASTM.






2. Procedure











crazing.







2. Procedure













AAMA 800-XX

DRAFT #3

DATED 7/20/15


Sealants Expanded Cellular Glazing Tapes

AAMA 810.1






TABLE OF CONTENTS



FOREWARD

This document has previously been part of AAMA 800 Voluntary Specifications and Test

Methods for Sealants. These expanded cellular glazing tapes may have other

applications within the fenestration industry however this specification primarily

addresses non-structural, in-shop glazing applications.

1.0 SCOPE

To provide a minimum level of performance for expanded cellular glazing tape for use in

fenestration applications.

NOTE 1: Essential properties of both the adhesive and cellular product include:

• Ability of foam to exert a minimum sealing pressure over a range of time,

weather conditions and glass lite to frame distortions.

• Shear and perpendicular adhesion characteristics such that the cellular circular

product to glass lite bond remains uncompromised both at installation time and

through a range of weathering conditions.

1.1 Tapes shall be classified as:

Type 1

Type 2

1.1.1 Type 1 tapes are intended as primary seals where tape is used by itself to prevent

air and water leakage or in a system when the tape acts as the primary sealant.

1.1.2 Type 2 tapes are intended as secondary seals where the tape is used in

combination with a full bead of wet sealant to prevent air and water leakage. The cellular

tape in these combinations is normally used to contain the wet sealant, which is the

primary sealer.

1.3 The primary units of measure in this document are metric. The values stated in SI

units are to be regarded as the standard. The values given in parentheses are for

reference only.

2.0 PURPOSE

2.1 This document is intended to assist the window manufacturer to specify and obtain

expanded cellular tapes meeting minimum performance criteria.



3.1 References to the standards listed below shall be to the edition indicated. Any

undated reference to a code or standard appearing in the requirements of this standard

shall be interpreted as to referring to the latest edition of that code or standard.


AAMA/WDMA/CSA 101/I.S. 2/A440-11, North American Fenestration

Standard/Specification for windows, doors, and skylights

4.0 DEFINITIONS

Expanded Cellular Glazing Tapes: Non-interconnecting cellular (closed cell) products

considered compression sealants which can be used for in-shop applications where the

glazing and/or panel(s) are sealed to a surrounding sash or frame.

For all additional definitions, please refer to AAMA Glossary (AG-13)

5.0 GENERAL

5.1 To qualify as meeting this specification, products tested shall meet all requirements

as specified herein.

5.2 Any adhesive system shall be permitted to be used in conjunction with the cellular

tape, providing it meets the requirements of this specification.

5.3 An adhesive system shall be permitted to be any one or combination of types of

adhesives (see NOTE 2 for examples) applied to one or both sides of the tape.

NOTE 2: The following types of adhesives may be applicable:

a. Pressure sensitive adhesive applied to one or both surfaces of the tape and

protected by a release liner.

b. Contact adhesive (2-way) applied to the tape and to all substrate surfaces.

c. Contact adhesive (1-way) or adhesion promoter applied to the substrate only.

5.4 The complete adhesive system shall be tested.


NOTE 3: The cellular tape shall be tested with the adhesive system(s) being used.

5.5 Material Requirements

Test

No. Property Type 1 Type 2

6.1 Compression/Deflection

Test A

Test B

34.5 kPa (5 psi) min.




6.2 Low Temperature Flexibility No Cracking of foam No Cracking of foam

6.3 Compression Set 6% max. 10% max.

6.4 Water Absorption 7% max. 10% max.

6.5 Water Penetration 15% max. loss 15% max. loss

6.6 Tensile Adhesion 30% elongation min.

172 kPa (25 psi) min.

30% elongation min.

172 kPa (25 psi) min.

6.7 Peel Adhesion 0.35 N/mm (2 lbf/in) width min. 0.18 N/mm (1 lbf/in) width min.

6.0 TESTS

6.1 TEST METHOD FOR COMPRESSION/DEFLECTION


6.1.1.1 A compression machine capable of compressing the specimen at a rate of 50

mm/min (2 in/min) gently without impact. The machine is permitted to be motor or hand

driven.

6.1.1.2 The compression gauge shall be graduated to 0.025 mm (0.001 in) to measure

compression of the specimen. If the compression machine automatically compresses the

specimen 25%, no gauge is necessary.

6.1.1.3 Prepare three samples as follows:

6.1.1.3.1 Razor cut the tape test specimen to 25 mm (1 in) square, with parallel top and

bottom surfaces, perpendicular to the top surface. (Samples under 25 mm (1 in) shall be

permitted to be laid side by side to create a surface area of 625 mm2 (1 in2).) The

specimen’s thickness shall be a minimum of 6 mm (1/4 in) and is permitted to be plied to

achieve this thickness. (A razor cut square plane is specified since another form can


result in uneven compression and another cutting method can result in mushrooming the

cellular tape.)

6.1.2 PROCEDURE

6.1.2.1 Calculate actual surface area of the test specimen.

6.1.2.2 Test A

Remove any release paper (adhesive should be dusted with a fine powder to reduce

tack) and compress the test specimen between parallel metal plates of the machine until

its thickness has been reduced 25% and immediately record the load in N (lbf).

Calculate the compressive force (expressed in kPa (psi)) by dividing the measured load

by the area of the specimen.

6.1.2.3 Test B

Maintain the specimen at the 25% compression state for 60 seconds, then record the

load in N (lbf). Calculate the compressive force (expressed in kPa (psi)) by dividing the

measured load by the surface area of the specimen.



6.2.1.1 Three standard etched and anodized aluminum (AA M10 C22 A31) panels, 85

mm (3 3/8 in) x 170 mm (6 3/4 in) x 0.8 mm (1/32 in) thick.

6.2.1.2 Tape to be tested shall be approximately 12 mm (1/2 in) wide x 150 mm (6 in)

long x 0.8 mm (1/32 in) to 4.8 mm (3/16 in) thick (record thickness with results) have

parallel top and bottom surfaces and be at right angles to the side surface.

6.2.1.3 Deep freeze unit capable of maintaining -18°C ± 3°C (0°F ± 5°F).

6.2.1.4 25 mm (1 in) diameter steel mandrel approximately 200 mm (8 in) long.

6.2.1.5 A PSTC roller weighing approximately 2 kg (4.5 lb) (see Section 3.10 for

supplier).


6.2.1.6 Cleaning solvent such as methyl ethyl ketone (MEK) or acetone. Rinsing solvent

such as Isopropyl Alcohol.

6.2.2 Procedure

6.2.2.1 Scrub the aluminum panels with a cleaning solvent. Repeat procedure with a

rinsing solvent. Dry wipe each panel insuring no solvent or lint remains. Place the test

specimen on each panel (leaving the release liner on) and roll with the PSTC roller once

in each direction at a rate of 305 mm/min (12 in/min). Carefully remove the release liner.

6.2.2.2 Place the panels and the mandrel in the deep freeze unit for 24 hours at -18°C ±

3°C (0°F ± 5°F). Ensure that nothing touches or rests on the test specimens during this

conditioning period.

6.2.2.3 While keeping the mandrel and panels in the deep freeze unit, bend each panel

180o around the mandrel away from the tape using no more than one second to make the

bend.

6.3 TEST METHOD FOR COMPRESSION SET


6.3.1.1 A compression device consisting of two parallel plates, which will not deflect or

warp between which the test specimen may be reduced 25% of its original thickness and

held in this position using the necessary shims and clamps (at least four). The clamps

shall be placed directly over the shims to insure that the plates are not warped.

6.3.1.2 A gauge graduated to 0.025 mm (0.001 in) increments to measure the thickness

of each tape specimen without compression.

6.3.1.3 Prepare three test samples as follows:

6.3.1.3.1 The tape specimen shall have parallel top and bottom surfaces which shall be

at right angles to the side surfaces. Dimensions of each specimen shall be 10 mm (3/8 in)

wide x 50 mm (2 in) long x 3.0 mm (1/8 in) minimum thickness, with or without adhesive.

Tapes with a thickness less than 3.0 mm (1/8 in) thick shall be plied to achieve a 3.0 mm

(1/8 in) minimum thickness.


NOTE 4: Release liners shall be on the top and bottom of each specimen (but not

between plies, if applicable).

6.3.2 PROCEDURE

6.3.2.1 Determine the thickness of the specimen including both release liners. Determine

the thickness of the release liner by obtaining an average measurement of a liner sample

from the same roll of tape the test specimen came from. Do not remove the release liner

from the specimen. Subtract two times the release liner thickness from the specimen

thickness and record this result as "To".

6.3.2.2 Center the specimen between the plates of the clamping device leaving release

liners on and compress it 0.25 "To" or 25% of the specimen thickness minus the release

liners.

6.3.2.3 Hold specimen in the compressed condition for 22 hours at room temperature

25°C ± 3°C (77°F ± 5°F).

6.3.2.4 Release the specimen from the clamping device and allow it to recover for 24

hours at room temperature 25°C ± 3°C (77°F ± 5°F).

6.3.2.5 Determine the final thickness of the specimen including the release liners.

Subtract two times the release liner thickness (determined above) from the final thickness

and record this result as "Tf".

6.3.3 CALCULATION

6.3.3.1 Calculate the compression set as a percentage of the original thickness as

follows:

Compression Set = T0 – Tf

X 100 T0

To = The original thickness.

Tf = Thickness at specified time after removal of the clamps.


6.4 TEST METHOD FOR WATER ABSORPTION


6.4.1.1 Vacuum chamber (preferably cylindrical) capable of providing a vacuum of at

least 0.92 atmospheres (0.95 kg/cm2 (13.5 psi) absolute).

6.4.1.2 Retaining cage made of 6 mm (1/4 in) mesh to hold specimen without

deformation and fit within the vacuum chamber.

6.4.1.3 Retaining weights approximately 100 g (3.5 oz) total.

6.4.1.4 Forceps or fine tipped tongs for lifting wetted samples.

6.4.1.5 A gauge graduated to 0.025 mm (0.001 in) to measure the specimen thickness

without compression.

6.4.1.6 Laboratory scale accurate to 0.01 gram.

6.4.1.7 Prepare three test samples as follows:

6.4.1.7.1 Razor cut tape specimen to 12 mm (1/2 in) wide x 200 mm (8 in) long by

supplied thickness. All surfaces shall be 90° with its adjacent surface. Specimens shall

not be plied to achieve a greater thickness. All release liners shall be removed.

6.4.2 PROCEDURE

6.4.2.1 Remove release liner, measure the thickness and state the average thickness in

the results.

6.4.2.2 Weigh specimen to the nearest 0.01 gram and record as "A".

6.4.2.3 Place the specimen in the center of the vacuum chamber. Place wire retaining

cage and weight (to insure cage will not move) over the specimen. Submerge specimen

in distilled water at room temperature, 25°C ± 3°C (77°F ± 5°F). The top surface of the

retaining cage shall be 50 mm (2 in) below the surface of the water. Close the vacuum

chamber and reduce the pressure above the water to 0.92 atmospheres (0.95 kg/cm2


(13.5 psi) absolute). Once this pressure is achieved, maintain for three minutes. Release

the vacuum and allow the specimen to remain submerged for three minutes at room

atmospheric pressure.

6.4.2.4 Remove the chamber top, the retaining weight and the retaining cage. Transfer

the specimen (pinching as little as possible) to a lint free towel to remove surface water.

(A K-Dry towel manufactured by Kimberly-Clark is known to work well for this

application). Briefly rest each exposed surface (six total) onto a dry section of the towel

(five seconds per side). Be careful that the adhesive surface does not stick to the towel.

6.4.2.5 Weigh the specimen to the nearest 0.01 gram immediately after all surfaces are

dried. Record this measurement as "B". Calculate the percent water absorption (by

weight):

Water Absorption = (B – A)

X 100 A

6.5 TEST METHOD FOR WATER PENETRATION


6.5.1.1 Air circulating oven capable of maintaining a temperature of 82°C ± 3°C (180°F ±

5°F).

6.5.1.2 Deep freeze unit capable of maintaining a temperature of -29°C ± 3°C (-20°F ±

5°F).

6.5.1.3 Water barrier material (such as aluminum foil) to prevent evaporation from

configuration.

6.5.1.4 Three clean glass plates 5 mm (3/16 in) thick x 250 mm (10 in) square.

6.5.1.5 Three clean aluminum panels 5 mm (3/16 in) thick x 250 mm (10 in) square.

6.5.1.6 Twelve clamps (four per construction) and the necessary shims to develop a

thickness reduction of 25%.


6.5.1.7 A gauge graduated to 0.025 mm (0.001 in) to measure the specimen thickness

without compression.

6.5.1.8 Tape to be tested shall have parallel top and bottom surfaces and be at right

angles to the side surface. Specimens shall be 12 mm (1/2 in) wide x 480 mm (19 in)

long x 1.6 mm (1/16 in) to 3.2 mm (1/8 in) thick. Tape shall not be plied together to

achieve greater thickness.

6.5.2 PROCEDURE

6.5.2.1 Remove the release liner, determine the average thickness of the specimen, and

record as "To". Determine the required shim thickness, "Ta" as:

Ta = 0.75 To

Four shims of Ta thickness should be used for each construction.

6.5.2.2 Place the sample in a "U" configuration (see Figure 1) on the glass panel. Leaving

a slight overhang 3 mm (1/8 in) to 6 mm (1/4 in), begin placing the specimen at the top

edge. The inside edge of the specimen shall be 50 mm (2 in) from the outer edge of the

glass panel. The inside bottom radius of the specimen shall be 75 mm (3 in). Place four

sets of shims onto the glass panel. Place the aluminum panel over the specimen and the

clamps directly over the shims and both panels. Compress tape by 25% and clamp.

Three constructions of each sample shall be made.

6.5.2.3 Fill the cavity with water up to within a 25 mm (1 in) of capacity, cover with water

barrier and fill as needed during test. (This is to assure that the fluid level never drops

below 50 mm (2 in) from the interior bottom of the "U" configuration).

6.5.2.4 Expose constructions to 20 cycles. Each cycle consisting of:

4 hours at -29°C ± 3°C (-20°F ± 5°F)

4 hours at 82°C ± 3°C (180°F ± 5°F)

16 hours recovery at room temperature 25°C ± 3°C (77°F ± 5°F)

6.5.2.5 After the last cycle, draw a reference line 100 mm (4 in) above the bottom edge of

the glass panel. The line shall be drawn completely across the glass panel, parallel to the


bottom edge, using a fine point marker. Technicians shall use a marking technique which

is consistent with each construction.

FIGURE 1 – Water Penetration

6.5.2.6 Bring the water level of each construction to the bottom edge of the reference

line. Cover the construction with foil or some other water vapor barrier to prevent

evaporation and let stand for 48 hours at room temperature, 25°C ± 3°C (77°F ± 5°F)

NOTE 5: A shim may be required under the base to level the water with the reference

line.

6.5.2.7 After 48 hours dwell at room temperature, measure the drop in water level from

the bottom of the reference line. One measurement shall be made for each construction

to within 1 mm (1/32 in). Average the three measurements and record as "A" in

millimeters (inches).

6.5.2.8 Calculate water penetration loss for each construction as:

Percent Loss = A

X 100 (Metric) 50

OR

Percent Loss = A

X 100 (IP) 2


6.6 TEST METHOD FOR TENSILE ADHESION


6.6.1.1 Aluminum T-blocks with minimum test surface dimensions of 25 mm (1 in) x

25 mm (1 in).

6.6.1.2 A test machine of either the crosshead type (constant rate of extension) or dead

weight pendulum type. The machine shall have one stationary head, one moveable head,

a graduated tension weighing device with an accuracy of 45 g (0.1 lb) or less and be

capable of a head separation rate of 305 mm (12 in) per minute. Chamber capable of

maintaining temperatures from 0°C to 50°C ± 3°C (32°F to 120°F ± 5°F).


5°F).

6.6.1.4 A gauge graduated to 0.025 mm (0.001 in) to determine surface area.

6.6.1.5 Cleaning solvent such as Methyl Ethyl Keytone (MEK) or acetone, along with

rinsing solvent such as isopropyl alcohol.

6.6.1.6 Fixture or weights capable of providing 170 kPa (25 psi) mating force to the

T-blocks.

6.6.1.7 Tape samples whose widths are less than 25 mm (1 in) shall be laid side by side

to obtain 25 mm (1 in) square sample area.

6.6.2 PROCEDURE

6.6.2.1 Scrub the T-blocks bonding surfaces with a cleaning solvent. Repeat procedure

with a rinsing solvent. Dry wipe each surface insuring no solvent or lint remains. Soaking

of previously used T-blocks in a closed container of MEK will facilitate the cleaning

process.

6.6.2.2 Remove the first two wraps of tape from the roll. Razor cut the tape test specimen

to 25 mm (1 in) square. Ensure that at no time, anything contacts the adhesive side of the

specimen. Place the adhesive side of the specimen onto the bonding surface of the T-


block so that the specimen is centered. Three constructions shall be made and labeled

for each of the three conditions. Calculate the exact surface for each construction.

6.6.2.3 Remove the protective liner from the tape and carefully align the second T-Block

with the first while placing it against the exposed adhesive surface. Tapes with adhesive

supplied on one surface shall be fastened on the non-adhesive side using an adhesive

furnished by the tape manufacturer.

6.6.2.4 Apply a force of 170 kPa (25 psi) to the mated assembly for 15 ± 1 second.

6.6.2.5 Condition three of the assemblies at each of the following conditions for one hour:

a) 25°C ± 3°C (77°F± 5°F)

b) 50°C ± 3°C (120°F± 5°F)

c) 0°C ± 3°C (32°F± 5°F)

6.6.2.6 Remove each construction from its condition environment (one at a time) test

within 60 seconds after removal.

6.6.2.7 Clamp one flange of the construction with the stationary head of the test machine.

Lower the movable head over the other flange of the construction and clamp. Carefully

align without producing any premature stress. Pull the two heads 180° away from each

other at a rate of 305 mm (12 in) per minute. Upon failure, determine the load or force (in

pounds) for separation and the distance the head moved at failure point.

6.6.2.8 Calculate the percentage of elongation as follows:

Elongation (%) = Distance Head Moved

Original Thickness

Calculate the dynamic tensile adhesion force as follows:

Dynamic Tensile Adhesion =

Force to Separate

Surface Area of

Specimen




6.7.1.1 Test machine of either the crosshead type (constant rate of extension) or dead

weight pendulum type. The machine shall have one stationary head, one moveable head,

a graduated tension weighing device with an accuracy of 45 g (0.1 lb) or less and be

capable of a head separation rate of 305 mm (12 in) per minute. The chamber shall be

capable of maintaining temperatures from 0°C to 50°C ± 3°C (32°F to 120°F ± 5°F).

6.7.1.2 Deep freeze unit capable of maintaining a temperature of 0°C ± 3°C (32°F ± 5°F).


5°F).

6.7.1.4 A thermometer or other equivalent device shall be used to obtain temperature

measurements.

6.7.1.5 Six clean aluminum panels 1.5 mm (1/16 in) thick x 50 mm (2 in) wide x 150 mm

(6 in) long.

6.7.1.6 Six clean glass panels 3 mm (1/8 in) thick x 50 mm (2 in) wide x 150 mm (6 in).

6.7.1.7 A PSTC roller weighing approximately 2 kg (4.5 lb).

6.7.1.8 A tray which can be clamped by the stationary head and will restrain a test panel

in a position perpendicular to the movable head, yet allow test panel to slide within the

tray.

6.7.1.9 Reinforced pressure sensitive tape, (Fiberglass or polyester film) 3 mm (1/8 in) to

6 mm (1/4 in) wider than the tape being tested.

6.7.1.10 Samples of the tape to be tested shall be between 10 mm (3/8 in) and 25 mm (1

in) in width.


6.7.2 PROCEDURE

6.7.2.1 Scrub the application surface of all metal and glass panels with a cleaning

solvent. Repeat procedure with a rinsing solvent. Dry wipe each panel insuring no solvent

or lint remains. Do not contaminate panel surface by stacking or by touching with fingers.

6.7.2.2 Discard the first two layers of the tape from the roll. Center the tape specimen on

each panel, running parallel with the longer side. Specimen shall be flush on one end and

have an overhang of 75 mm (3 in) to 130 mm (5 in) on the other end of the panel. Avoid

trapping any air pockets under the specimen. If the adhesive surfaces on a double coated

tape differ from one side to the other, then both shall be tested and reported. In these

situations, when testing the second adhesive surface, adhere the face side of the total

length of the specimen, with liner, to a strip of the reinforcement tape. Remove the liner

and apply the specimen to the test panels as described above.

6.7.2.3 In the case of tape widths of less than 25 mm (1 in), cut additional strips from the

same roll and apply parallel and adjacent to the test specimens to provide a total width of

25 mm (1 in) for rolling purposes. Pass the PSTC roller, without application of additional

pressure over the backing of the tape lengthwise, once in each direction at the

approximate rate of 305 mm (12 in) per minute. Once rolling is complete, remove any

additional strips from the panel without disturbing the test specimen. Carefully remove the

liner, if present from all test specimens.

6.7.2.4 Apply the reinforcement tape to each specimen on the side from which the

release liner was removed. Apply the reinforcement tape starting on the end of the panel

that has the specimen flush with the end and continue across the panel. Ensure that the

test specimen is completely covered by the reinforcement tape. Fold the reinforcement

tape over the test specimen overhang approximately 50 mm (2 in) so the edges of the

reinforcement tape adheres to itself. This is to ensure that values obtained are strictly

adhesion oriented and not a combination of tensile and adhesion. Ensure that the

reinforcement tape does not adhere to or touch the panel at any time.

6.7.2.5 Condition the specimens in accordance to the following schedule:

a. Three Glass and three aluminum panels at 0°C ± 3°C (32°F ± 5°F) for 24 hours.

b. Three Glass and three aluminum panels at 50°C ± 3°C (120°F ± 5°F) for 24

hours.


6.7.2.6 Remove each panel from its conditioning environment (one at a time) and test

within 60 seconds after removal. Insert the overhang of the specimen into the jaws of the

movable head. Ensure that the tray is exactly perpendicular to the pulling direction and

that the movable head is located directly over the test specimen.

6.7.2.7 Test the specimen by peeling at a rate of 305 mm (12 in) per minute. Record the

average peel adhesion value (using no less than eight data points from the specimen),

disregarding the first and last 25mm (1 in) from the specimen panel. Try to keep the

angle of separation as close to 90° as possible. If foam tear occurs, report the highest

recorded load value up to the occurrence of the tear. Record the mode of failure on the

report.

6.7.2.8 Convert the average value to N/mm (lb/in width) for each specimen and report.

Values shall be grouped according to panel type and test condition.


7.1 TAPE SAMPLING

The tape to be tested shall be taken directly from a randomly selected container as

commercially supplied by the manufacturer. The container shall be full and not previously

opened. The testing shall be completed within the shelf-life recommended by the

manufacturer. The tape manufacturer's instructions giving any options allowed in the test

methods shall be obtained along with the tape sample.


After testing, examine each group of specimens representing a given test. Should any

one specimen be found not to meet requirements, the given test shall be repeated.


If the tape fails the specific retest, a new sample shall be submitted and all the

requirements of the specification shall be tested.


Unless cleaning instructions are given in the individual test method, clean all metal and

glass test surfaces using the procedure outlined below.


a. Always pour solvent on the rag being used. Never dip the rag in the cleaning

solvent, as this contaminates the solvent.

b. Use the "Two Rag Wipe" technique. One rag is used to wipe off the wet solvent

and contaminates from the surface. Use a second rag one time in one direction

to remove any remaining solvent and contaminants, allowing the solvent to dry

on the surface without wiping with a second dry absorbent cloth merely re-

deposits the contaminants as the solvent dries.

c. Change to clean rags frequently as you see them becoming soiled. It is easy to

see the soiling if white rags are used.



NOTE 7: Sealant manufacturer and/or sealant user should test specific sealants,

substrates, primers (if required) and cleaning procedures to ensure adequate adhesion is

developed under actual conditions.

7.4 COMPATIBILITY

This specification qualifies a tape for use. It does not address the adhesion capability of

the tape for a specific substrate nor the compatibility of the tape with the materials it

contacts. Adhesion and compatibility characteristics required for specific substrates or

finishes shall be determined by the following test methods:



a. Two 600 ml (20 oz), high form beaker (no pouring lip). Two watch glass covers

for same.


c. Two 100 mm (4 in) pieces of plastic glazing bead and/or setting block to be

evaluated.

2. Procedure


Apply a 6 mm (1/4 in) wide 50 mm (2 in) long tape to one 100 mm (4 in) piece of

material to be evaluated. Immediately place the test strip (tape applied) plus one

100 mm (4 in) piece of specimen (with no tape applied) in separate beakers and

cover with watch glasses. Condition for 24 hours at 25°C ± 3°C (77°F ± 5°F) then

place beakers and strips in a 82°C ± 3°C (180°F ± 5°F) air circulating oven for 72

hours. After 72 hours exposure in the oven, remove the material from the oven and

condition to 25°C ± 3°C (77°F ± 5°F) for a minimum of one hour. The material

being tested shall not be evaluated until its temperature has been determined to be

25°C ± 3°C (77°F ± 5°F). Evaluate the compatibility of the tape by reporting any

differences between the plastic bead or accessory with tape applied and that

without tape. Observe the tape and substrates for discoloration, staining, tackiness,

softening or crazing.



a. Two 600 ml (20 oz), high form beakers (no pouring lip). Two watch glass covers

for same.



2. Procedure

Apply test tape approximately 6 mm (1/4 in) thick to the surface of the edge of two

adjacent sides of three laminated glass pieces being sure to cover bond line

(interface of glass and laminate). Immediately place three specimens with test strip

(tape applied) plus three specimens (with no tape applied) in separate beakers and

cover with watch glasses. Condition for 24 hours at 25°C ± 3°C (77°F ± 5°F) then

place beakers and strips in a 82°C ± 3°C (180°F ± 5°F) air circulating oven for 72

hours. After 72 hours exposure in the oven, remove the material from the oven and

condition to 25°C ± 3°C (77°F ± 5°F) for a minimum of one hour. The material

being tested shall not be evaluated until its temperature has been determined to be

25°C ± 3°C (77°F ± 5°F). When compared to the control (specimens without tape)

there shall be no differences in fogging, separation, discoloration or cracking.

Sealant Manual AAMA 800-XX Section 1 - aamanet.org · E-Mail: [email protected] Web Site: AAMA...

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