TL256_EN_2004

Confidential. All rights reserved. No part of this document may be transmitted or reproduced without the prior written permission of a Standards Department of the Volkswagen Group.Parties to a contract can only obtain this standard via the responsible procurement department.© VOLKSWAGEN AGT h e E n g l i s h t r a n s l a t i o n i s b e l i e v e d t o b e a c c u r a t e . I n c a s e o f d i s c r e p a n c i e s t h e G e r m a n v e r s i o n s h a l l g o v e r n .Page 2TL 256: 2004-083.2 General requirementsApproval of first supply and changes according to VW 011 55.Avoidance of hazardous substances according to VW 911 01.Ten parts are required for complete testing.3.3 Weak spotsWeak spots are edges of an area that was mechanically worked after coating for design reasons (in a zone of max. 2.5 mm width, starting from the edge of the unpainted surface).3.4 AppearanceThe parts shall exhibit a uniform appearance on their entire surface, according to drawing and released sample. Pores, coarse cracks, and other flaws or damage that adversely affect the specified appearance are not permissible. The coating shall have firm adherence to the base material.3.5 Further propertiesSee Table 2.Table 2No. Property RequirementOfl-x650 Ofl-x6511 Base material see drawing2 IR spectrum of the powder paint acc. to sample *3 Degree of glossiness degree of glossiness according to originalsample or drawing specification4 Pretreatment and primer coat4.1 Steel zinc phosphated zinc phosphatedand primed4.2 Zinc passivated passivatedand primed4.3 Aluminum passivated passivatedand primed4.4 Copper - primed5 Coating thickness5.1 Primer coat - 25 ± 5 µm5.2 Powder paint 60 µm6 Adhesion and brittleness(crosscut test acc. to DIN EN ISO 2409) Gt 0 to 17 Resistance to stone impactacc. to DIN 55996-1 max. characteristic value 1* The IR samples must be presented by the supplier during the first sample tests.Page 3TL 256: 2004-08No. Property Requirement8 Corrosion behavior8.1 Corrosion cycle test 1)no blisters, no corrosion of base metal;adhesion loss D 2.5 mm, but never > 5 mm8.2 Test in the moisture-condensateconstant climate 2)no blisters, no corrosion of base metal; the requirements of Section 3.5 and Table 2, No. 6 must be fulfilled9 Temperature resistance (temperature cycle test)9.1 Aging at elevated temperature 3) 9.2 Aging at low temperature 4)requirements of Section 3.5 and Table 2, No. 6 must be fulfilled10 Impact test at low temperature 5)no chipping and no cracks of the coating; impactshall not reach base material 6)11 Resistance to chemicals 7)11.1 Premium unleaded gasolineacc. to DIN EN 22811.2 Diesel fuel acc. to DIN EN 59011.3 Respectively released sealant andsealant removermax. characteristic value 11) 60 cycles according to Test Specification PV 1210 with scribing line according to DIN EN ISO 7253, Section 8.5. Evaluationaccording to DIN EN ISO 4628-8.2) Test according to DIN 50017-KK, test duration 240 h; the specimens are then acclimatized for at least 30 minutes at (18 to 28) °C.3) 240 h aging in the mechanical circulation oven at (+90 + 2) °C; the specimens are then acclimatized for at least 30 minutesat +(18 to 28) °C.4) After aging at elevated temperature (Table 2, No. 9.1), the same specimens are aged at low temperatures for 24 h at (-40 + 3) °C;next the specimens are acclimatized for at least 30 min at (+18 to 28) °C. Afterwards, these same specimens are tested according to Table 2, No. 10.5) Impact test after 24 h aging at (-40 + 3) °C on the basis of DIN EN ISO 4532, but with a specified test force of 90 N ona rigid substrate.6) In the case of stabilizers, impacts of up to 3 mm in diameter which extend down to the base material and are caused by the testmethod are permitted.7) Test according to VDA test sheet 621-412, test A; evaluation according to DIN EN ISO 4628-1, Table 3.Page 4TL 256: 2004-084 Referenced standards*)PV 1210 Body and Add-on Parts; Corrosion TestVW 011 55 Vehicle Supply Parts; Approval of First Supply and ChangesVW 137 50 Surface Protection of Metal Parts; Degrees of Protection, Codes, RequirementsVW 911 01 Environmental Standard for Vehicles; Vehicle Parts, Materials, Operating Fluids; Avoidance of Hazardous SubstancesVDA 621-412 Anstrichtechnische Prüfungen, Chemikalienbeständigkeit von Kraftfahrzeug-Lackierungen (Tests for Coating Methods, Resistance to Chemicals ofAutomotive Paints – only available in German)DIN 50017 Atmospheres and Their Technical Application; Condensation Water Test AtmospheresDIN 55996-1 Paints and Varnishes – Stone Chip Resistance Test for Coatings – Part 1: Multi Impact TestDIN EN 228 Automotive Fuels – Unleaded Petrol – Requirements and Test MethodsDIN EN 590 Automotive Fuels – Diesel – Requirements and Test MethodsDIN ISO 4532 Vitreous and Porcelain Enamels – Determination of the Resistance of Enameled Articles to Impact – Pistol TestDIN EN ISO 2409 Paints and Varnishes – Cross-Cut TestDIN EN ISO 4628-1 Paints and Varnishes – Evaluation of Degradation of Coatings – Designation of Quantity and Size of Defects, and of Intensity of Uniform Changes inAppearance – Part 1: General Introduction and Designation SystemDIN EN ISO 4628-8 Paints and Varnishes – Evaluation of Degradation of Coatings; Designation of Quantity and Size of Defects, and of Intensity of Uniform Changes inAppearance – Part 8: Evaluation of Corrosion around a ScribeDIN EN ISO 7253 Paints and Varnishes – Determination of Resistance to Neutral Salt Spray (Fog)*)In this section, terminological inconsistencies may occur as the original titles are used.。