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
To comply with the standard, the anodic coating must meet several physical and visual benchmarks: The coating must be smooth, uniform, and adherent
Specifying Type B and C coatings for high-traffic building storefronts and curtain walls. Published by ASTM International , this specification ensures
is a critical international standard for the Anodizing of Aluminum , specifically covering requirements for electrolytically formed porous oxide coatings . Published by ASTM International , this specification ensures that aluminum parts achieve necessary levels of corrosion resistance, abrasion resistance, and aesthetic quality. Understanding ASTM B580-79
Parts must be free of powdery areas, burns, loose films, or significant discolorations. Why the ASTM B580-79 PDF is Essential