ASTM-D7396 › Historical Revision Information
Standard Guide for Preparation of New, Continuous Zinc-Coated (Galvanized) Steel Surfaces for Painting
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Scope
1.1 This guide covers surface cleaning and eight 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.
Significance and Use
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.
Keywords
acid-curing resinous treatment; amorphous complex-oxide treatment; annealing heat treatment; chromate; chromate test; chromic-organic treatment; galvanize; phosphate; pretreatment; surface treatment; zinc; ICS Number Code 25.220.20 (Surface treatment)
To find similar documents by ASTM Volume:
06.02 (Paint -- Products and Applications; Protective Coatings; Pipeline Coatings)
To find similar documents by classification:
25.220.20 (Surface treatment Including anodization, conversion coating, thermal spraying, etc.)
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Document Number
ASTM-D7396-14R20
Revision Level
2014 R20 EDITION
Status
Current
Modification Type
New
Publication Date
Feb. 1, 2020
Document Type
Guide
Page Count
4 pages
Committee Number
D01.46