This guide describes procedures that can be used to prepare new zinc-coated surfaces for painting and improve the bond of paint to the zinc surface.

1. Scope

1.1 This guide covers surface cleaning and various methods of treating new zinc-coated by the continuous process (galvanized) surfaces produced by either the hot-dip method or by electroplating. This guide covers surfaces that have not been treated previously at the mill to provide temporary protection against staining by moisture other than by easily removed protective oils (see Appendix X1). For preparing surfaces of new or weathered items of zinc-coated steel produced by batch processing, refer to Practice D 6386.

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

1.3 This 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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

SSPC--The Society for Protective Coatings Standards

Keywords

acid-curing resinous treatment; amorphous complex-oxide treatment; annealing heat treatment; chromate; chromate test; chromic-organic treatment; galvanize; phosphate; pretreatment; surface treatment; zinc; Galvanized materials/structures/surfaces; Zinc-coated steel products;

ICS Code

ICS Number Code 25.220.20 (Surface treatment)

Citing ASTM Standards

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