TL 211 Requirements Paint Coatings on Exterior Plastic Parts · Paint Coatings on Exterior Plastic...

Paint Coatings on Exterior Plastic Parts

Requirements

Previous issues

TL 211: 1974-11, 1983-10, 1989-07, 1992-08, 1992-09, 1995-03, 1995-10, 1998-06, 2003-02,2003-03, 2009-09

Changes

The following changes have been made as compared to TL 211: 2009-09:– Mistake in specification of the test duration in Table 2, No. 11.1 corrected

Scope

This Technical Supply Specification (TL standard) defines requirements for primer coat, single andmulti-layer paint coatings acc. to color standard or custom color combination chart on plastic parts(body-mounted parts, e.g. bumper, wheel cover, rear spoiler, trunk lid, liftgate, fender, etc).

Description

Paint coat acc. to TL 211

Requirements

General requirements

Approval of first supply and changes acc. to Volkswagen standard VW 01155.Avoidance of hazardous substances acc. to VW 91101.

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3.1

Group Standard TL 211Issue 2009-10

Class. No.: 50243

Descriptors: paint, paint coating, exterior plastic part, bumper, wheel cover, rear spoiler, trunk lid, liftgate, fender

Check standard for current issue prior to usage.This electronically generated standard is authentic and valid without signature.The English translation is believed to be accurate. In case of discrepancies the German version shall govern.Numerical notation acc. to ISO practice.

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Technical responsibility Standards DepartmentGQL-LP/2 Angela Kern Tel.: +49-5361-9-28507

GQL-LP/2 Dr. Annett Schramm

GQL-LP Dr. Roger HillertEKDV/4 Jürgen Wiesner EKDVTel.: +49-5361-9-29064 Manfred Terlinden

Confidential. All rights reserved. No part of this document may be transmitted or reproduced without prior permission of a Standards Department of the Volkswagen Group.Parties to a contract can only obtain this standard via the B2B supplier platform www.vwgroupsupply.com.© Volkswagen Aktiengesellschaft VWNORM-2008-12g

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In case pretreatment is necessary to activate the substrate, the related method must be specified(e.g. flame exposure, plasma treatment, etc.).The coating/paint as well as potential refinishing paint must adhere firmly to the substrate or to theoriginal paint coat.All areas of parts which are not subject to the requirements stated in this TL standard must be iden‐tified as such in the drawing.The supplier must provide the following information for all parts to be tested:1. Specification of the base material (manufacturer designation and VDA (German Association of

the Automotive Industry) designation)2. Color3. Paint structure (precise paint specifications, paint supplier), e.g.:

Primer coat: 2-component primer coat 01-79008, by XXX, 20 μmBase coat: 831646, by XXX, 20 μmClear coat: 2-component clear coat GP72-0113, by XXX, 22 μm

4. Paint shop worker5. Paint shop unit6. Paint shop7. Painting date

Appearance and haptic characteristics

The parts must exhibit a uniform appearance on their entire surface; they must conform to the drawingrequirements and to the released sample with respect to gloss and color.Pores, coarse cracks and other flaws that adversely affect the specified appearance are not permis‐sible.Color and gloss level are to be documented in the first-sample test report or development sampletest report acc. to VW 50195.

Open-air weathering

All painted components in the Volkswagen Group are subjected to open-air weathering acc. toVW 50185.The supplier is obligated to remove the cause for complaints occurring during this test and to improvethe paint system.

Paint process

The paint process must be coordinated between the paint shop and the paint manufacturer. Bothparties confirm the first-sample test report, meaning that both are responsible for fulfilling the specifiedrequirements.Responsibilities are broken down as follows:– The paint manufacturer provides information on the fulfillment of the requirements stipulated in

the Technical Supply Specification, processing guidelines, and support regarding the appliedpaint method.

– The paint shop provides information about the substrate (type of plastic material and commercialname), checks the requirements as early as possible (this also applies to pre-series parts: at

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TL 211: 2009-10

least for adhesion), confirms compliance with the processing guidelines of the paint manufacturerand demands support regarding the applied paint method.

Conditioning

All samples delivered for testing must be pre-conditioned:7 days at room temperature with narrow air temperature range (18 °C to 28 °C) or 48 h at 60 °C. Thetests are carried out after cooling down at room temperature for at least one hour.

Requirements on structure and paint coat thickness

General information

Only one single refinishing paint job is permissible, considering the total paint coat thickness of <150 µm (in the case of piano lacquer, paint coat thickness according to release status or drawing).In principle, the following color combinations are permissible for re-painting:1. First and second coat are of the same color2. Permissible first coats for all colors: black, dark blue shades, dark gray shades (also metallic or

pearlescent finishes)Other color combinations must be agreed upon with the relevant release departments of each brand.NOTE 1 If for technical reasons an increased total paint coat thickness is necessary, this must beagreed upon by the parties involved. However, all other requirements stated in TL 211 must be ful‐filled.Exceptions: Only primed parts < 50 μm1). Deviations require a corresponding drawing entry or aseparate release.

Structure

Base material

Plastic acc. to drawing.

Primer coat/filler/primer surfacer1)

If specified (by drawing, release or color standard) or required for technical reasons (depending onsubstrate).

Top coat or intermediate coat (solid color, metallic, pearlescent finish)

Base coat acc. to color standard or custom color combination chart, free of cadmium or cadmiumcompounds.

Clear coat (if required for decorative or technical reasons)

Acc. to released sample, testing acc. to IR spectrum.

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4.2.1

4.2.2

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4.2.4

1) Parts already coated with top coat must not be used for after-sales service parts that are only primed. Plastic parts which are onlyprimed must only fulfill the requirements specified in Table 2, no. 2 to 6 and 8.11 to 8.13.

TL 211: 2009-10

Paint systems and paint coat thicknesses in µm

See Table 1.

Table 1

No. System Primer coat Single-layerpaint

Double-layerpaint

Multi-layerpaint

Single-layer pi‐ano lacquer

Double-layerpiano lacquer

1 Total paint coatthickness

2 to 50 20 to 40 22 to 90 32 to 125 47 to 130 67 to 165

2 Primer surfac‐er/primer coat/filler

2 to 50 – 2 to 50 2 to 50 2 to 50 2 to 50

3 Top coat – 20 to 40 20 to 40 – – –

4 Intermediate coat

Solid color – – – 15 to 35 15 to 35 15 to 35

Metallic/pearlescent

– – – 10 to 35 10 to 35 10 to 35

5 Clear coat – – 20 to 40a) 20 to 40 35 to 45 55 to 80

a) This only applies to parts with base coat/clear coat paint system without primer coat, filler or primer surfacer.

Property requirements

See Table 2.

Table 2

No. Property Requirement

1 Visual properties of single-layer and double-layer piano lacquer and special paint of high-gloss brilliant appearance

1.1 Gloss acc. to DIN EN ISO 2813

Double-layer piano lacquer > 90

Single-layer piano lacquer > 90

Brilliant solid color, pearlescent and metallic paints > 85 (conditionally up to -5)

Other paints Acc. to drawing or surface performance specificationsLAH 893 018

1.2 Color acc. to DIN 5033-4, DIN 6174, DIN 6175-2 (appliesto first samples and standard production colors only)

Acc. to VW 50195

1.3 Structure; measuring system: Wave-scan plus, measurement acc. to manufacturer’s specifications

Double-layer piano lacquer LW < 5; SW < 10

Single-layer piano lacquer LW < 7; SW < 18

Brilliant solid color, pearlescent and metallic paints LW < 13; SW 10 to 30

Other paints Acc. to drawing or surface performance specificationsLAH 893 018

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TL 211: 2009-10


2 Adhesion

2.1 Cross-cut test acc. to DIN EN ISO 2409 a) with removalof adhesive tape.

Cross-cut test characteristic value ≤ 1

2.2 Behavior in pressure washer testacc. to Test Specification PV 1503

Delamination of the paint coat is not permitted.

3 Condensed water test in CH test atmosphere acc. toDIN EN ISO 6270-2, test duration 240 h.

1. Evaluation after 30 min acc. to DIN EN ISO 4628-2,degree of blistering 2 (S2) is still permissible.2. Evaluation after 24 h acc. to DIN EN ISO 4628-2, de‐gree of blistering 0 (S0). If blistering occurs earlier, testingof paint adhesion is to be performed in that very area. Therequirements acc. to Table 2, consec. no. 2 must still becomplied with.3. Visual changes to the paint surface are not permissible.

4 Environmental cycle test acc. to Test SpecificationPV 1200, 20 cycles

Visible changes to the paint surface are not permissible.

5 Behavior in temperature cycle test

5.1 Aging at elevated temperatureAging in recirculated air, 240 h at (+90 ± 2) °C followedby at least 30 min of acclimatization at room temperature.

The requirements acc. to Table 2, consec. no. 2 must stillbe complied with.Visual changes to the paint surface are not permissible.

5.1.1 Low-temperature aging.After aging at elevated temperature, the same specimensare to be exposed to low-temperature aging. Test dura‐tion 24 h, test temperature (-40 ± 2) °C followed by at least30 min of acclimatization at room temperature.

The requirements acc. to Table 2, consec. no. 2 must stillbe complied with.Visual changes to the paint surface are not permissible.

5.2 Low-temperature behavior, aging duration 24 h

5.2.1 Impact test based on DIN ISO 4532 b), (-40 ± 3) °C Chipping and cracks in the paint coat are not permissible.

6 Stone impact testacc. to DIN EN ISO 20567-1, Method B

Characteristic value ≤ 2,0

7 Car wash resistanceScratch resistance acc. to PV 3.3.3

VE ≥ 1

VR ≥ 1 after reflowc)

8 Resistance to chemicals with respect to

8.1 FAM test fuel acc. to DIN EN ISO 2812-3 (procedure withabsorbent material), 10 min at room temperature

Reversible swellings permissible, no visible changes tothe paint surface permissible after 24 h.

8.2 Super unleaded gasoline acc. to DIN EN 228 andDIN EN ISO 2812-3 (procedure with absorbent material),10 min at room temperature


8.3 Diesel fuel acc. to TL 788 and DIN EN ISO 2812-3 (pro‐cedure with absorbent material), 1 h at room temperature


8.4 Diesel made from fatty acid methyl ester (FAME) acc. toDIN EN 14214 and DIN EN ISO 2812-3 (procedure withabsorbent material), 1 h at room temperature


TL 211: 2009-10


8.5 Engine oil acc. to TL 52173 (Burmah Castrol oil codeA97075PBC) and DIN EN ISO 2812-4 (spotting method),16 h at room temperature


8.6 Brake fluid acc. to TL 766 and DIN EN ISO 2812-3 (pro‐cedure with absorbent material), 1 h at room temperature

Reversible swellings permissible, no visible changes tothe paint surface permissible after 24 h.

8.7 Coolant acc. to TL 774 and DIN EN ISO 2812-3 (proce‐dure with absorbent material), 1 h at room temperature


8.8 Polishd) (commercially available, e.g. Sonax car polish) Visible changes to the paint surface are not permissible.

8.9 Bitumen and tar removere) Visible changes to the paint surface are not permissible.

8.10 Bird feces substitute (pancreatin) acc. toDIN EN ISO 2812-4 (spotting method), 6 h at +45 °C inoven, cleaned under running water, 2 h at +60 °C in oven(regeneration)

Visible changes to the paint surface are not permissibleafter cooling to room temperature.

8.11 Tree resin acc. to DIN EN ISO 2812-4 (spotting method),6 h at +45 °C in oven, cleaned with petroleum ether inwarm condition, 2 h at +60 °C in oven (regeneration)

Visible changes to the paint surface are not permissibleafter cooling to room temperature.

8.12 Preservative filmf) Reversible swellings permissible, no visible changes tothe paint surface permissible after 24 h. Adhesiveresidues after removal of the preservative film are notpermitted.

8.13 Commercially available nitrocellulose thinner (applies on‐ly to primed after-sales service parts) acc. toDIN EN ISO 2812-3 (procedure with absorbent material),10 min at room temperature


9 Light and weather resistance (short-term tests)

9.1 Weathering in humid heatacc. to PV 3930 (corresponding to Florida)test duration: 2 year cycles for replaceable add-on parts,3 year cycles for body parts

Visible changes to color and gloss are not permissibleg).The requirements acc. to Table 2, consec. no. 2.1 muststill be met.

9.2 Weathering in dry heat acc. to PV 3929 (corresponding to Kalahari and Arizona) test duration: 2 year cycles for replaceable add-on parts,3 year cycles for body parts

Visible changes to color and gloss are not permissibleg).The requirements acc. to Table 2, consec. no. 2.1 muststill be met.

10 Resistance of the clear coat against UV radiation acc. toPV 1502 (on the specified plastic), test duration: 1000 h

Formation of cracks in the clear coat is not permissible.

11 Weather resistance in nature (open-air weathering) (Only for release testing)

TL 211: 2009-10


11.1 Weathering in humid heat(Florida/USA) acc. to VDA 621-403, test duration:24 months

Visible changes to the color and other changes to thepaintwork such as cracks, chalking or blistering are notpermitted.

11.2 Weathering in dry heat(Kalahari, Arizona) acc. to VDA 621-403, test duration:48 months

Visible changes to the color and other changes to thepaintwork such as cracks, chalking or blistering are notpermitted.

a) Please take greater care than with metal substrate to ensure that the cuts made in the crosscut test do enter the substrate, however,do not go too deep. Press the adhesive tape („Tesagewebeband 4657“ by Tesa) firmly onto the surface before removing it.

b) Deviation: specified testing force 90 N and usage of a rigid support.c) Reference clear coat ALD096050, made by BASF, reference sheets can be obtained from PKP-L/C.d) Apply polish with a cellulose pad, let dry and then buff with cotton.e) 5 g "industrial bitumen OX DE 85/25" by Esso, Hamburg, stirred with 5 ml petroleum ether to make a paste. Thoroughly cover an area

with a diameter of approx. 3 cm with this paste. After 1 h exposure period, the part is cleaned of the tar paste using tar remover(commercially available, e.g. Sonax tar remover).

f) The coating must be tested acc. to QP R015, Section 3.12 using the released transit protection materials used in standard production(e.g. Bodygard 50530 by Tesa).

g) All coatings must be cleaned prior to evaluation. Black matt paint coats are to be cleaned only with clear water with a commerciallyavailable wetting agent (e.g. Pril) added, solid and metallic paint coats using commercially available polish.

Referenced documents

The following documents cited in this standard are necessary for application.In this Section terminological inconsistencies may occur as the original titles are used.Standards with the titles given in German are either only available in German or may be procured inother languages from the institution issuing the standard.

PV 1200 Vehicle Parts; Testing of Resistance to Environmental Cycle Test(+80/-40) °C

PV 1502 Clear Coat for Dual-Layer Metallic Paint Coatings; Testing for Resistanceto Cracking

PV 1503 Paint Coating of Metallic and Non-Metallic Materials; Pressure WasherTest

PV 3.3.3 Paints and Varnishes; Scratch Resistance Testing of Clear CoatsPV 3929 Non-Metallic Materials; Weather Aging in Dry, Hot ClimatePV 3930 Non-Metallic Materials; Weathering in Moist, Hot ClimateQP R015 Self-Adhesive Film; Quality RequirementsTL 52173 Factory-Fill Engine Oil SAE 0W-30 with Fuel-Saving Properties for Ex‐

tended Oil Change Intervals; Requirements, TestingTL 766 Brake Fluid; Material RequirementsTL 774 Ethylene Glycol-Based Coolant Additive; Material RequirementsTL 788 Diesel Fuel; Fuel RequirementsVW 01155 Vehicle Supply Parts; Approval of First Supply and ChangesVW 50185 Vehicle Parts; Resistance to Open-Air WeatheringVW 50195 Colorimetric Evaluation of Automobile Paint Coatings

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TL 211: 2009-10

VW 91101 Environmental Standard for Vehicles; Vehicle Parts, Materials, OperatingFluids; Avoidance of Hazardous Substances

DIN 5033-4 Colorimetry; spectrophotometric methodDIN 6174 Colorimetric evaluation of colour coordinates and colour differences ac‐

cording to the approximately uniform CIELAB colour spaceDIN 6175-2 Tolerances for automotive paints - Part 2: Goniochromatic paintsDIN EN 14214 Automotive fuels - Fatty acid methyl esters (FAME) for diesel engines -

Requirements and test methodsDIN EN 228 Automotive fuels - Unleaded petrol - Requirements and test methodsDIN EN ISO 20567-1 Paints and varnishes - Determination of stone-chip resistance of coatings

- Part 1: Multi-impact testingDIN EN ISO 2409 Paints and varnishes - Cross-cut testDIN EN ISO 2812-3 Paints and varnishes - Determination of resistance to liquids - Part 3:

Method using an absorbent mediumDIN EN ISO 2812-4 Paints and varnishes - Determination of resistance to liquids - Part 4:

Spotting methodsDIN EN ISO 2813 Paints and varnishes - Determination of specular gloss of non-metallic

paint films at 20°, 60° und 85°DIN EN ISO 4628-2 Paints and varnishes - Evaluation of degradation of coatings - Designation

of quantity and size of defects, and of intensity of uniform changes in ap‐pearance - Part 2: Assessment of degree of blistering

DIN EN ISO 6270-2 Paints and varnishes - Determination of resistance to humidity - Part 2:Procedure for exposing test specimens in condensation-water atmo‐spheres

DIN ISO 4532 Vitreous and porcelain enamels - Determination of the resistance of enam‐elled articles to impact - Pistol test

VDA 621-403 Anstrichtechnische Prüfungen; Prüfung der Wetterbeständigkeit imNaturversuch (Freibewitterung)

TL 211: 2009-10

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