ASTM D6386-16a

Standard Practice for Preparation of Zinc (Hot-Dip Galvanized) Coated Iron and Steel Product and Hardware Surfaces for Painting (Includes all amendments And changes 2/18/2022).

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STANDARD published on 15.6.2016

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The information about the standard:

Designation standards: ASTM D6386-16a
Note: WITHDRAWN
Publication date standards: 15.6.2016
SKU: NS-641278
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Surface preparation

Annotation of standard text ASTM D6386-16a :

Keywords:
galvanized steel, galvanizing, hot-dipped galvanizing, painting, paint preparation, surfacing preparation, zinc coating,, ICS Number Code 25.220.10 (Surface preparation)

Additional information

Significance and Use

4.1 This practice describes the procedures that can be used to prepare new and weathered zinc-coated surfaces on after-fabrication steel products for painting, and that can improve the bond of paint to the zinc surface.

1. Scope

1.1 This practice describes methods of preparing surfaces of new and weathered hot-dip galvanized steel for painting with liquid paint and coating products. Preparing surfaces of new and partially weathered galvanized steel for powder coating is addressed in Practice D7803. Hot-dip galvanized steel is produced by the immersion of fabricated or unfabricated products in a bath of molten zinc, as specified in Specifications A123/A123M or A153/A153M. This practice covers surface preparation on iron and steel products and hardware that have not been painted previously. Galvanized surfaces may have been treated with protective coatings to prevent the occurrence of wet storage stain. This practice does not apply to sheet galvanized steel products nor to the coil coating or continuous roller coating processes. Sheet and coil surface preparation can be done in accordance with Practice D7396.

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 to determine the application of regulatory limitations prior to use.

2. Referenced Documents

A153/A153M-23	Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A780-01	Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings
B201-80(2019)	Standard Practice for Testing Chromate Coatings on Zinc and Cadmium Surfaces
D4285-83(2018)	Standard Test Method for Indicating Oil or Water in Compressed Air
D6492-99(2022)	Standard Practice for Detection of Hexavalent Chromium On Zinc and Zinc/Aluminum Alloy Coated Steel
Surface Preparation Specification No. 7	Brush-Off Blast Cleaning
Surface Preparation Specification No. 11	Power Tool Cleaning to Bare Metal
Surface Preparation Specification No. 16	Brush-Off Blast Cleaning of Non-Ferrous Metals
Paint Specification No. 27	Basic Zinc Chromate-Vinyl Butyral Wash Primer
SSPC Guide 15	Field Methods for Extraction and Analysis of Soluble Salts on Steel and Other Nonporous Substrates
Surface Preparation Specification No. 3	Power Tool Cleaning
D7091-22	Standard Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals
D7396-14(2020)	Standard Guide for Preparation of New, Continuous Zinc-Coated (Galvanized) Steel Surfaces for Painting
D7803-19	Standard Practice for Preparation of Zinc (Hot-Dip Galvanized) Coated Iron and Steel Product and Hardware Surfaces for Powder Coating
E376-19	Standard Practice for Measuring Coating Thickness by Magnetic-Field or Eddy Current (Electromagnetic) Testing Methods
Surface Preparation Specification No. 1	Solvent Cleaning
	Hand Tool Cleaning
A123/A123M-17	Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

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