ASTM D823

ASTM D823 is the ASTM standard titled Standard Practices for Producing Films of Uniform Thickness of Paint, Coatings and Related Products on Test Panels. It provides practical guidance for preparing test films with consistent thickness, which is important when comparing coating performance, appearance, and other test results. By helping users create more uniform panels, the standard supports more reliable laboratory evaluation, quality control, and product development work across paint and coatings applications.

What is ASTM D823?

ASTM D823 describes standard practices for producing films of uniform thickness on test panels using paint, coatings, and related products. Its purpose is to help ensure that applied films are prepared in a controlled and repeatable way, so test outcomes are more meaningful and easier to compare. In a testing or development setting, this standard is commonly used to support consistent sample preparation before visual inspection, performance testing, or other evaluations where film thickness can influence results.

Where is ASTM D823 used?

ASTM D823 is commonly used in coating laboratories, quality control environments, and product development workflows where test panels must be prepared consistently. It is relevant for users working with paints, protective coatings, and similar materials applied to panels for evaluation. The standard is especially useful when application technique, film uniformity, and repeatability matter during comparative testing or routine assessment of coating systems.

Why is ASTM D823 important?

ASTM D823 matters because film thickness can affect how a coating performs and how test results are interpreted. Using a recognized practice for preparing uniform films helps reduce variation between panels, improves consistency in product evaluation, and supports more dependable comparisons. For procurement, testing, and compliance-related work, this can lower the risk of misleading results and strengthen confidence in laboratory and quality control decisions. It also helps align internal procedures with a widely recognized ASTM standard.

• Uniform film preparation on test panels
• Controlled coating application practices
• Repeatable laboratory sample preparation
• Supports comparative testing and evaluation
• Useful for quality control workflows