You can purchase the ASTM D823 standard from the ASTM International website or obtain a copy from a document provider like IHS Markit or ANSI.
is a critical international standard developed by ASTM International that outlines standardized practices for producing films of uniform thickness for paints, varnishes, and related coatings on test panels. These procedures are essential for ensuring that subsequent tests—such as color matching, gloss measurement, or durability testing—are performed on consistent, repeatable samples. Core Practices of ASTM D823 astm d823 pdf
ASTM D823 is a standard practice for producing films of uniform thickness of paint, coatings, and related products on test panels. It provides five different methods for applying these coatings to ensure consistent results during testing. Core Content of ASTM D823 The standard is divided into five specific methods for coating application: Method A: Automatic Spray Machine Uses a mechanical spray gun moved at a constant speed across a panel. This is the most reproducible method for spray-applied coatings. Method B: Motor-Driven Dip Coater Involves immersing a panel in a coating and withdrawing it at a constant, controlled speed. The thickness is determined by the withdrawal rate and the coating's viscosity. Method C: Motor-Driven Blade Film Applicator Uses a "doctor blade" or drawdown bar moved by a mechanical device. Eliminates human error in speed and pressure compared to manual drawdowns. Method D: Motor-Driven Spinning Disk (Centrifugal) A panel is attached to a rotating disk, and a measured amount of coating is applied to the center. Centrifugal force spreads the liquid to create a thin, uniform film. Method E: Hand-Held Blade Film Applicator The manual version of Method C, using hand-held drawdown bars. While common, it is considered less precise than the motor-driven methods. Why This Standard Matters In coating technology, properties like color, gloss, drying time, and chemical resistance are highly dependent on You can purchase the ASTM D823 standard from
ASTM D823 is a standard test method developed by the American Society for Testing and Materials (ASTM) that covers the preparation of uniform thickness of paint, varnish, and related coatings on test panels. Core Practices of ASTM D823 ASTM D823 is
ASTM D823 is a widely used standard practice for preparing and using two-part epoxy and polyurethane adhesive binders. The standard provides guidelines for mixing, applying, and curing these adhesives for various applications.
ASTM D823 establishes five standard practices (A-E) for producing uniform paint, varnish, and coating films on test panels, ensuring accurate and repeatable laboratory analysis. These methods cover both automated and manual techniques, including spray and blade application, with critical controls for substrate type and application speed. For more details, visit msrpco.com .