ASTM D823-18
Standard Practices for Producing Films of Uniform Thickness of Paint, Coatings and Related Products on Test Panels

Standard No.

ASTM D823-18

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D823-18(2022)

Latest

ASTM D823-18(2022)

Scope

4.1 This practice should be used for those coatings that are designed for spray applications of objects in the factory or in the field. It is particularly important that it be used in the evaluation of metallic coatings for appearance properties, such as gloss and color.

4.2 Coatings applied by this test method may exhibit a slight orange-peel or spray wave.

1.1 Five practices are given for preparing films of uniform thickness of coatings on test panels. These practices are:
Practice A—Automated Spray Machine Application
Practice B—Motor-Driven Dip Coater Application
Practice C—Motor-Driven Blade Film Application
Practice D—Hand-Held Spray Gun Application
Practice E—Hand-Held Blade Film Application

1.2 The use of wire-wound drawdown bars as described in Practice D4147 may also be an appropriate method for producing films of uniform coating thickness.

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

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This 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.

ASTM D823-18 Referenced Document

• ASTM D1005 Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
• ASTM D1212 Standard Test Methods for Measurement of Wet Film Thickness of Organic Coatings
• ASTM D3924 Standard Specification for Standard Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials
• ASTM D4147 Standard Practice for Applying Coil Coatings Using The Wire-Wound Drawdown Bar
• ASTM D4285 Standard Test Method for Indicating Oil or Water in Compressed Air
• ASTM D4414 Standard Practice for Measurement of Wet Film Thickness by Notch Gages
• ASTM D609 Standard Practice for Preparation of Cold-Rolled Steel Panels for Testing Paint, Varnish, Conversion Coatings, and Related Coating Products
• ASTM D7091 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

ASTM D823-18 history

• 2022 ASTM D823-18(2022) Standard Practices for Producing Films of Uniform Thickness of Paint, Coatings and Related Products on Test Panels
• 2018 ASTM D823-18 Standard Practices for Producing Films of Uniform Thickness of Paint, Coatings and Related Products on Test Panels
• 2017 ASTM D823-17 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
• 1995 ASTM D823-95(2012)e1 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
• 1995 ASTM D823-95(2012) Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
• 1995 ASTM D823-95(2007) Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
• 1995 ASTM D823-95(2001) Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
• 2001 ASTM D823-95 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels