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GMNA - 9984306

Powder Topcoat for Small Parts with Limited Ultraviolet (UV) Exposure

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Organization: GMNA
Publication Date: 1 August 2016
Status: active
Page Count: 3
scope:

Material Description. This specification covers the requirements for black thermosetting powder paint. This coating is intended to act as a final topcoat that would provide a smooth, hard, corrosion and Ultraviolet (UV) resistant finish. This coating is intended to be applied over metallic substrates that are phosphated, either zinc or iron and Electrocoat (e-coat) primed per GMW14671 -B-U/B or autodeposition per GMW14671 -F-U/B. Other GM approved pretreatments and/or primer may be specified as approved by the responsible GM Materials Engineer.

Symbols. Not applicable.

Applicability. This topcoat is intended to provide UV protection to underhood and chassis components that have limited exposure to UV light such as: trailer hitches, exposed fuel tanks, entry steps, exposed battery boxes, etc.

Remarks. None

Document History

9984306
August 1, 2016
Powder Topcoat for Small Parts with Limited Ultraviolet (UV) Exposure
Material Description. This specification covers the requirements for black thermosetting powder paint. This coating is intended to act as a final topcoat that would provide a smooth, hard, corrosion...
9984306
October 1, 2003
Powder Topcoat for Small Parts with Limited UV Exposure
1 Scope This specification covers the requirements for black thermosetting powder paint. This coating is intended to act as a final topcoat that would provide a smooth, hard, corrosion and UV...

References

This document references:
ASTM D3363 - Standard Test Method for Film Hardness by Pencil Test
Published by ASTM on September 1, 2020
This test method covers a procedure for rapid, inexpensive determination of the film hardness of an organic coating on a substrate in terms of drawing leads or pencil leads of known hardness. This...
This document references:
ASTM D523 - Standard Test Method for Specular Gloss
Published by ASTM on January 1, 2014
This test method covers the measurement of the specular gloss of nonmetallic specimens for glossmeter geometries of 60, 20, and 85° (1-7).2 The values stated in inch-pound units are to be regarded as...
This document references:
GMW14270 - Material Engineering Common Requirements
Published by GMW on March 1, 2021
Purpose. The purpose of this specification is to clearly communicate the GM Materials Engineering requirements to the supplier during the quotation process. Each Statement of Requirement (SOR) for a...
This document references:
GMW14669 - Organic Coating Performance for Exterior and Interior Metallic Components
Published by GMW on September 1, 2016
Introduction 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...
This document references:
GMW14671 - Organic Coating Performance for Underhood and Underbody Components
Published by GMW on December 1, 2016
Material Description. This standard gives performance requirements for organic-coat finishes on the surfaces of underhood and underbody components. It also gives opportunity to specify the type of...
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