Anodize
The following procedure is for anodizing aluminum parts. Anodizing will protect the aluminum parts by making the surface much harder than natural aluminum. Aluminum oxide is grown out of the surface during anodizing and then becomes aluminum hydrate that is extremely hard. The porous nature of the anodized layer allows the product to be dyed any color that is required. The method described is Type II anodizing (room temperature) and gives an anodized layer of .0002″ to .001″ (half which is grown into the surface and half out of the surface). Parts anodized will become slightly larger by about .0005″.
Anodize Per Mil-A-8625 Type II Class I and II
Hard Anodize
Tarder and thicker then conventional Anodic Coatings. Hard anodize coatings for aluminum are mostly used for their wear-resistant characteristics and their resistance to corrosion.Hard anodizing works in two ways; it penetrates the parts surface and it builds up the layer on the parts surface and it builds up a layer on the parts surface approximately .001 to .006. The depth of the penetration and the amount of build are approximately equal, but can very according to the aluminum alloy. The term “thickness” includes both the amount of the penetration and the amount of build.
Hard Anodize Per Mil-A-8625 Type III class I and II
Black Anodize
