The standard laid out strict criteria for:
of anodic coatings based on their thickness and intended application: Industry Description Minimum Film Thickness ( Engineering Hard Coat Architectural Class I Architectural Class II Automotive—Exterior Interior—Moderate Abrasion Interior—Limited Abrasion Not specified Chromic Acid Anodizing Not specified Key Requirements Porous Nature astm b580-79 pdf
Various degrees of decorative and protective coatings with thinner profiles for specific industrial needs. Key Requirements The standard laid out strict criteria for: of