Full Description

ENGLISH CURRENT VERSION

This specification covers the qualification and performance requirements of a one component, medium solids ((35 to 48)% volume solids as applied), solventborne clearcoat (CC) used wet-on-wet over the solventborne basecoat (BC) technology.

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.

Purpose/Material Description.

Each combination of specific BC and CC shall be tested and approved as a basecoat/clearcoat (BC/CC) topcoat system. The individual components are not interchangeable. In addition, the topcoat system is part of the total coating system and shall meet the requirements as outlined in GMW3005, those set forth in this specification, and on the engineering drawings. Topcoat Classes are defined in GMW3005. Validation testing for plant specific layering, ancillary materials, and processing shall be conducted prior to release. The nominal bake for this topcoat system is 25 minutes at 130 °C (265 °F) substrate temperature.

Symbols.

Not applicable.

Applicability.

These topcoats are designed to be applied over a baked primer.

Remarks.

Not applicable.

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