ASTM D 4146 : 2010 : R2022

1.1This test method covers the evaluation of the formability and adhesion of factory applied zinc-rich primer/chromate complex coatings on steel with thicknesses of 0.65 mm to 1.25  mm (0.025 in. to 0.05 in.) typical of those used in the coil coating industry.

1.2The degree of oil removal prior to forming, the techniques of taping, and differences in adhesive strength of the tape can affect the adhesion rating.

1.3The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 7.

1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.