Surface Finish
Type II Anodize Color and Dimensional Allowance for CNC Parts
Type II sulfuric-acid anodizing can improve corrosion resistance and provide clear or dyed appearance on aluminum CNC parts. It also changes the surface. Some of the oxide forms above the original metal surface and some develops inward, while cleaning and etching before anodizing can remove material. The net dimensional result
October 11, 2026
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