Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called anodizing because the part to be treated forms the anode electrode of an electrical circuit.
The most common types of anodizing requests are Clear Anodize, Black Anodize, Chromate Conversion and Hard Coat.
Anodizing increases resistance to corrosion and wear, and provides better adhesion for paint primers and glues than bare metal does. It is also a means of masking metals to provide a uniform look.
