GM warranty functioning requires paint manufacturers to proceed from GM specifications.
GM uses a allot of specifications for after-market whitewash handle designed to build the burdensome Stop that was delivered with modern GM vehicles. Approved stain manufacturers must result a place of strict specifications in trail to handle their whitewash on a GM vehicle. These specifications must be followed to perform warranty labour for GM. Everyone approved emulsion transaction is tested annually to supply customers with the highest-quality colouring Stop.
The Paint System
Common Motors requires single-system utilize for any tint applied. This method that all surfacers, primers, pattern coats, sealers and sunny coats must come from the alike product contour and be component of a integral gloss manner. The specifications close not let on the mixing of products from diverse approved systems to design a hybrid course. Approaching a GM vehicle in this fashion can void the manufacturer's warranty and arrangement in a block of charge-back payments from GM on warranty work.
Specifications require anyone applying paint to a vehicle and working for an approved manufacturer to be trained in a certified paint training program by the paint manufacturer. Specific training by an approved manufacturer is important because each paint product varies from maker to maker.
Paint Performance
All specified paints must pass a series of paint performance tests conducted by a third-party laboratory. Testing includes the following: Tukon hardness, paint adhesion, paint chip resistance, durability in extreme weather changes, gasoline resistance and corrosion resistance. Test standards that the laboratory must follow are contained in GM4350M specifications titled "Painted Part Performance Requirements."
GM focuses after-market paint specifications on appearance, performance and durability that matches or exceeds the original paint. Included are paint systems from Akzo Nobel Coatings, BASF and DuPont. Other well-known paint companies that typically are included in the annual specifications are Sherwin Williams, Martin-Senour, Spies Hecker and PPG.
Paint that exceeds VOC limits is not manufactured in or imported to the United States. GM may allow paint systems that follow their testing guidelines but do not adhere to the EPA rule to be specified outside the United States.
Specified Paint Systems
GM produces an annual list of its specified refinishing systems. Consistency of color, the clarity of the clear coat and the strength of the bond between the paint and the metal below are the focus of testing.
