Hard anodizing is the term used to describe the functional refinement of aluminum components as anode in special, cold electrolytes. This process is sometimes also referred to as hard coat anodizing. Hard anodizing creates very thin, non-metallic conversion coatings.

What is a hard anodized finish?

Hardcoat Anodize or simply Hard Anodize is a dense anodic coating of aluminum oxide applied by converting a properly cleaned and deoxidized aluminum alloy component into an oxide film using a suitable electrolyte, typically sulfuric acid cooled to nearly freezing, and applied voltages upwards of 100 volts at an applied ...

What type is hard anodize?

Type III aluminum anodizing, also called hard coat anodizing or hard anodizing, is used to increase the wear and corrosion resistance, increase the surface hardness, and improve the thermal and dialectical properties of treated aluminum objects.