GMW GMW14668 PDF

This specification covers basic requirements for copper-nickel-chromium electroplated plastic parts, including assemblies.

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Material Description. Platings to this specification are intended for the following applications:

• Interior (Code A). Interior applications do not require the use of discontinuous chromium or multiple layer nickel systems. For interior applications non-discontinuous chrome (r) is permissible.

Type 1: standard interior usage.

Type 2: for highly stressed interior parts as required (for example, door handles, manual shifter décor rings or bezels).

• Exterior (Code B). For exterior applications, discontinuous chromium plate, microporous (mp) or microcracking (mc), in addition to a multiple layer nickel system, shall be used.

Type 1: no stone chipping exposure on a vehicle.

Type 2: with stone chipping exposure on a vehicle. Includes significant surfaces of plated plastic parts attached to forward-facing vehicle areas or to vehicle areas subject to self-generated stone chipping (as defined by ≥ 15 degree impingement of straight line projection from tire).

Type 3: very severe service conditions (wheel clads and caps); includes stone chipping.

Note: If no exterior type is listed on detail drawing, Type 2 is assumed.

Symbols. Not applicable.

Typical Applications. This type of finish shall be principally used for decorative purpose. Bright and other (e.g., satin, brushed, dark, or grained) appearances are for interior and exterior plastic applications, as defined by styling and specific appearance standards.