Performance Requirements for Exterior Plastic Parts with Paint Film
|Publication Date:||1 November 2017|
This specification covers basic paint film technology approval requirements and the performance requirements of exterior plastic parts decorated with paint film. The parts must be made using regular production process and tooling. The parts may be functional within themselves or they may be a subassembly of, or attached to, decorative or functional parts. Examples are emblems, rocker moldings, air dams, body-side moldings, body claddings, mirror housings, appliques, inserts, lamp housings, and fascias.
Symbols. Not applicable.
Type I constructions are used for exterior parts such as rockers, appliqués, fascias, etc.
Type II constructions are for bright film.
Type III constructions are used for emblems (e.g., BowTies, GMC letters).
Finished parts are made from thermoformed sheet stock (thin and thick film). The thin film can also be thermoformed into a preform and placed into an injection mold where plastic is injected onto the back of the preform to make an insert for emblems or the finished part. Injected molded materials must meet the requirements of GMW15572P-ABS-T1 or T2 for Acrylonitrile Butadiene Styrene (ABS) or GMW15187 or GMW16826 for Thermoplastic Olefin (TPO). The use of a masking film is optional and covered by the Approved Paint on Parts (APOP) approval.
Parts which require gasoline resistance will be designated by the suffix G.
Example of drawing call-out of molding located under the fuel filler GMW15202-G.
Typical paint film constructions are shown in Appendix B.