Dow Corning Industrial Assembly and Maintenance Adhesives and
Sealants
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2 Content General Information Introduction Typical
Characteristics of Dow Corning brand Silicone Adhesives and
Sealants Dow Corning brand Product Technologies for Adhesives and
Sealants Application List Major Application Examples Product
Reference List
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Silicone Sealant Chemistry Silicone sealants consist of
inorganic Siloxane (Si-O-Si-O-Si) polymers Basic formulation
includes: polymer, filler, crosslinker, catalyst, adhesion
promoter, pigment and plasticizer Silicone sealants may be one
component or two components (fast cure) 3
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Silicone Adhesives and Sealants from Dow Corning These products
are versatile, durable and have exceptional performance
characteristics This combination of properties has made them valued
products for endless applications in the Industrial Assembly and
Maintenance market; engineers have come to rely on Dow Corning
Adhesives and Sealants to solve their most challenging problems
Following are seven reasons why Dow Corning brand silicone sealants
should be used 4
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USING DOW CORNING BRAND SILICONE SEALANTS 5
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1. Wide Service Temperature Range Dow Corning Adhesives and
Sealants offer users exceptional thermal stability over a wide
service temperature range Fully cured, these all-purpose materials
can be used for extended periods at temperatures ranging from -85
to 450F (-65 to 232C), and there are some products that can be used
for shorter periods up to 600F (315C) Glass transition temperatures
are very low [e.g. -196F (-127C) compared to -100F (-73C)];
therefore, silicone sealants and adhesives remain flexible across a
wide range of temperatures 6 -85F450F
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2. Extremely Weather Resistant Dow Corning Silicone Adhesives
and Sealants are virtually unaffected by weather including rain,
sleet, snow, ultraviolet (UV) radiation, ozone and temperature
extremes When compared with organic sealants and adhesives, these
materials show excellent resistance to hardening, cracking,
crumbling, drying out or becoming brittle with aging 7
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3. Good Dielectric Properties When used for
electrical/electronic applications, Dow Corning Silicone Adhesives
and Sealants exhibit good dielectric properties over wide thermal
cycling conditions. 8
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4. Good Bond Strength Dow Corning Silicone Adhesives and
Sealants are specially designed to provide good adhesion and bond
strength to a variety of surfaces The materials have been developed
to achieve excellent adhesion to glass, wood, silicone resin,
vulcanized silicone rubber, natural and synthetic fiber, painted
surfaces and many plastics and metals 9
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5. Low Flammability In fire conditions, silicone adhesives and
sealants are reluctant to burn; in fact, some grades are
exceptionally flame retardant Even those types which eventually
ignite have a low rate of heat release and low by-product toxicity
Many products comply with UL-94 flammability standards such as
UL-94 HB or UL-94 V-0 10
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6. Chemically Stable Featuring good chemical stability, Dow
Corning Silicone Adhesives and Sealants are ideal for use in
applications exposed to harsh environments. 11
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7. Environment Dow Corning is always striving to improve
operations, working largely from the framework of the Responsible
Care Pollution Prevention Code. 12 Responsible Care is a registered
trademark of the American Chemistry Council, Inc.
One-part RTVs: Acetoxy Cure System Features and Advantages:
Give off acetic acid as by-product Long shelf life (> 12 months)
UL, NSF and FDA approvals Wide operating temperature range: -50 to
> +200C Fast cure and fast green strength No reversion Not
easily poisoned Disadvantages and Limitations: Acetic acid odor
Corrosive cure by-product (during cure) Adhesion is substrate
dependent Non-paintable 14 Si-OH + Si-OAc Si-O-Si + AcOH
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Product List: Americas Cure TypeDow Corning ProductSpecial
FeaturesTemp. Range (Intermittent) Acetoxy 730 Solvent Resistant
SealantSolvent-resistant-85 to 500F (-65 to 260C) 732 Multi-purpose
Sealant Multi-purpose, FDA, NSF -76 to 350F (400) [-60 to 177C
(204)] 733 Glass and Metal SealantGood adhesion-70 to 350F (400)
[-57 to 177C (204)] 734 Flowable Sealant Flowable, self-leveling
-85 to 356F (-65 to 180C) 736 Heat Resistant Sealant
High-temperature resistant -85 to 500F (599) [-65 to 260C (315)]
786 Mildew Resistant SealantMildew-resistant-76 to 350F (400) [-60
to 177C (204)] 1890 Protective Coating Coating, visc. 400 poise -75
to 350F (400) [-59 to 177C (204)] Oxime 236 Dispersion Coating
Coating, visc. 675 cps -40 to 300F (-40 to 150C) 737 Neutral Cure
SealantFast cure-85 to 350F (-65 to 177C) Alkoxy 738 Electrical
SealantElectrical sealant-80 to 356F (-62 to 180C) 739 Plastic
AdhesivePlastic adhesive-65 to 300F (350) [-54 to 149C (177)] 748
Non-corrosive Sealant FDA- and NSF-approved -65 to 350F (400) [-55
to 177C (204)] 832 Multi-surface Adhesive/Sealant Excellent
adhesion -67 to 300F (350) [-55 to 149C (177)] 15
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Room Temperature Cure RTV Products Cure at room temperature
Cure from surface inward* Require humidity to cure* Deep section
cure is critical Cure by-products Primerless adhesion on many
substrates 16 *One-part RTV
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Application Need: Bonding the sole plate Sealing the steam
chamber Material Requirements: Heat resistance Hot water resistance
Water vapor resistance Adhesion to aluminum Adhesion to stainless
steel Potential Product Solutions: Dow Corning 736 Heat Resistant
Sealant Dow Corning 733 Glass and Metal Sealant Application
Example: Steam Iron 17 Bonding sole plate Sealing steam
chamber
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Application Example: Oven Door, Microwave Door Application
Need: Bonding outer window to frame Bonding inner window to frame
Material Requirements: Heat resistance (up to 250C) Good adhesion
to glass Good adhesion to painted metal Potential Product
Solutions: Dow Corning 736 Heat Resistant Sealant Dow Corning 732
Multi-purpose Sealant 18 Microwave door seal
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Application Example: Stove Top Sealing Application Need: Seam
sealing Material Requirements: Heat resistance Hot water resistance
Potential Product Solutions: Dow Corning 732 Multi-purpose Sealant
Dow Corning 736 Heat Resistant Sealant Target Customers: Stove top
manufacturer 19 Seam sealing
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Application Example: Stove Top Sealing Application Need:
Sealing frame to kitchen desk Sealing/bonding glass (adhesive seal)
Material Requirements: General: Heat resistance Hot water
resistance Good adhesion Good tooling Potential Product Solution:
Adhesive seal: Dow Corning 732 Multi-purpose Sealant 20 Target
Customer: Ceramic hob manufacturer Sealing frame to kitchen desk
Sealing/bonding glass plate to frame
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Application Example: Display for Super Market Application Need:
Gap filling/bonding Material Requirements: Good adhesion to various
metals, plastics and glass Water resistance Flexible bond at low
temperatures Potential Product Solutions: Dow Corning 732
Multi-purpose Sealant Dow Corning 737 Neutral Cure Sealant Target
Customers Industrial freezer display case manufacturer 21 RTV is
used inside (seam sealant under the floor board)
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Application Example: Commercial Kitchen Equipment Application
Need: Adhesive seal Gap filling/bonding Material Requirements: Good
adhesion to various metals, plastics and glass Heat resistance
Fluid resistance (hot water, detergent) 22 Potential Product
Solutions: Dow Corning 732 Multi-purpose Sealant Dow Corning 736
Heat Resistant Sealant; Dow Corning 733 Glass and Metal Sealant
Target Customers Kitchen equipment manufacturers Commercial kitchen
equipment
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Application Example: Refrigerator Application Need: Seam
sealant of the plastic/plastic or plastic/metal Bonding silicone
rubber gasket to cover Material Requirements: Good adhesion to
plastic and metal Good adhesion to silicone rubber Good
adhesion/flexible bond at low temperatures Potential Product
Solutions: Dow Corning 732 Multi-purpose Sealant Dow Corning 739
Plastic Adhesive; Dow Corning 737 Neutral Cure Sealant Target
Customers Refrigerator manufacturers 23 Seam sealant
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Application Example: Flange Sealing Application Need: Sealing
and bonding metal flanges Material Requirements: Chemical
resistance Good adhesion Potential Product Solutions: Dow Corning
732 Multi-purpose Sealant; Dow Corning 734 Flowable Sealant; Dow
Corning 736 Heat Resistant Sealant Target Customers Chemical
Industry Maintenance departments 24 Metal flange seal (FIPG)
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Application Example: Window Sealant Application Need: Bonding
rear window (replacing hinges on the emergency exit) Material
Requirements: Weather resistance Good adhesion Potential Product
Solution: Dow Corning 9-1363 Industrial Assembly Adhesive/Sealant
Dow Corning 733 Glass and Metal Sealant Target Customers Farm
machinery manufacturer Construction machinery manufacturer (crane,
shovel, etc.) 25 Bonding rear window
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Assured Safety and Reliability The following products meet the
requirements of the F.D.A. regulation "Code of Federal Regulations
21 CFR" concerning food contact applications if used in accordance
with: UNITED STATES Section 177.2600 "Rubber articles intended for
repeated use. Dow Corning 700 Industrial Grade Silicone Sealant Dow
Corning 732 Multi-purpose Sealant Dow Corning 733 Glass and Metal
Sealant Dow Corning 734 Flowable Sealant Dow Corning 736 Heat
Resistant Sealant Dow Corning 748 Non-corrosive Sealant Dow Corning
786 Silicone Sealant M Dow Corning 1890 Protective Coating 26 FDA
is a registered trademark of the U.S. Food and Drug
Administration.
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Assured Safety and Reliability Many Dow Corning Silicone
Adhesives and Sealants meet the FDA 21 CFR 177.2600 regulation for
repeated food contact as manufactured. Written copies of current
food profiles can be obtained by contacting Dow Corning
Environmental Health & Safety (EH&S) at
[email protected]@dowcorning.com 27 USDA is a
registered trademark of the United States Government.
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Assured Safety and Reliability The National Sanitation
Foundation (NSF) certifies products and provides standards that
help protect food, water, air and consumer products Products
Approved for Standard 51 used in restaurant food equipment: Dow
Corning 700 Industrial Grade Silicone Sealant Dow Corning 732
Multi-purpose Sealant Dow Corning 733 Glass and Metal Sealant Dow
Corning 734 Flowable Sealant Dow Corning 736 Heat Resistant Sealant
Dow Corning 786 Silicone Sealant M Products Approved for Standard
61 used with portable water equipment: Dow Corning 732
Multi-purpose Sealant 28 NSF is a registered trademark of NSF
International.
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Assured Safety and Reliability The Underwriters Laboratories
Inc. (UL) has developed the UL-94 Standard for Flammability of
Plastic Materials for Parts in Devices and Appliances Certified
products can be found on the UL siteUL site Some examples of
certified products: Dow Corning 700 Industrial Grade Silicone
Sealant Dow Corning 732 Multi-purpose Sealant Dow Corning 733 Glass
and Metal Sealant Dow Corning 734 Flowable Sealant Dow Corning 736
Heat Resistant Sealant Dow Corning 748 Non-corrosive Sealant 29 UL
is a registered trademark of Underwriters Laboratories, Inc.
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Summary Typical characteristics of Dow Corning Silicone
Adhesives and Sealants include: Wide service temperature range
Extremely weather resistance Good adhesion to a wide range of
substrates High resistance to water, oil, coolant, detergent and
many other chemicals Excellent electrical insulating properties Low
flammability 30
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Questions? 31
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The information contained in this communication does not
constitute an offer, does not give rise to binding obligations, and
is subject to change without notice to you. The creation of binding
obligations will occur only if an agreement is signed by authorized
representatives of Dow Corning and your company. Any reference to
competitor materials contained in this communication is not an
endorsement of those materials by Dow Corning or an endorsement by
the competitor of Dow Corning materials. To the fullest extent
permitted by applicable law, Dow Corning disclaims any and all
liability with respect to your use or reliance upon the
information. DOW CORNING DOES NOT MAKE ANY WARRANTY OR
REPRESENTATION, EXPRESS OR IMPLIED, WITH RESPECT TO THE UTILITY OR
COMPLETENESS OF THE INFORMATION AND DISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
DOW CORNING DISCLAIMS LIABILITY FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES. 32