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GMW3011

Zinc Phosphate - Generic Qualifications

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Organization: GMW
Publication Date: 1 August 2014
Status: active
Page Count: 7
scope:

This specification details the general material performance, paint layering compatibility, and processing requirements for GM worldwide approval of zinc phosphate conversion coatings.

Material Description. Materials qualified to this standard shall meet the performance shown in Table A1, Appendix A. Any material development issues, such as chemical or performance values that fall outside specified ranges, must be discussed with the appropriate GM Materials Engineer for resolution. Material must successfully complete a production trial in a target facility prior to release for general use.

Symbols. Not applicable.

Applicability. This specification applies to zinc phosphate conversion coating materials that are intended for use on automotive vehicles and associated components. These coatings must provide a crystalline, corrosion-resistant, paint adhesion promoting surface to the substrates shown in Table 1. Additional substrates may be required by the GM Engineer facilitating the approval testing.

Document History

August 1, 2019
Zinc Phosphate - Generic Qualifications
This specification details the general material performance, paint layering compatibility, and processing requirements for GM worldwide approval of zinc phosphate conversion coatings. Material...
GMW3011
August 1, 2014
Zinc Phosphate - Generic Qualifications
This specification details the general material performance, paint layering compatibility, and processing requirements for GM worldwide approval of zinc phosphate conversion coatings. Material...
December 1, 2003
Phosphating – Generic Qualifications
1 Scope This specification details the general material performance, compatibility, and processing information requirements for international corporate approval of zinc phosphate conversion coatings.
June 1, 1999
Phosphating - Generic Qualifications
I. Scope This specification details the general material performance, compatibility, and processing information requirements for international corporate approval of zinc phosphate conversion coatings.

References

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