GMW18024

Description / Abstract: GMW18024, 1st Edition, June 2018 - Decorative Tint Over Metallization Coating for Exterior Lighting

Material Description. This specification covers the material requirements for vacuum-deposited metal coatings with subsequent decorative tinted topcoat that is protected by an outer lens. The metalized finish is created using Physical Vapor Deposition (PVD); i.e., vacuum evaporation, sputter deposition, arc vapor deposition, etc. An organic topcoat is subsequently applied after vacuum deposition to add appearance or color effects.

Symbols. Not applicable.

Applicability. These coatings are intended to enhance the appearance of exterior lighting reflectors, bezels and decorative components which are protected by a lens within an assembly. 1.4 Remarks.

Each combination of metallization system, including pretreatment, metal target, and coating must be approved to this specification as a system.

Substrate must be approved to the appropriate GM material specification.

This standard may involve hazardous materials, operations and equipment. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.