Thin anodic coating: .00002”-.0001” (20 to 100 micro inches).
Surface finish will be gray and since it is thin, it will not be possible to add color.
Good for tight tolerance parts because it will not change dimensions. This type of anodizing is also great for bonding, welded parts and assemblies. Finally, the Chromic Acid Anodizing is non-conductive.
This type of anodizing is good for aerospace components as either a final finish, a base for paint or as a companion finish to hard anodizing (multi-processes).