Pdf: Astm B580-79

The coating must be smooth, uniform, and adherent to the base metal.

ASTM B580-79 identifies of anodic coatings based on their intended service environment and thickness: Coating Type Industry Description Minimum Thickness (μm) Typical Application Type A Engineering Hard Coat 50.0 (Typical) Aerospace, high-speed machinery Type B Architectural Class I Exterior facades, windows Type C Architectural Class II Interior architectural elements Type D Automotive — Exterior Automotive trim, wheel covers Type E Interior — Moderate Abrasion Appliances, consumer electronics Type F Interior — Limited Abrasion Lighting fixtures, decorative trim Type G Chromic Acid Specialized crevice or humid conditions Core Requirements and Workmanship astm b580-79 pdf

Applying Type D coatings to exterior trim to withstand harsh environmental salts and debris. Accessing the Standard The coating must be smooth, uniform, and adherent

Utilizing Type A hard coats for wear resistance and electrical insulation in aircraft components. The coating must be smooth