Eloxation / Anodization of aluminum - G.W.P.
In anodic oxidation (eloxation), the aluminum surface is converted into a dense, very hard oxide layer in an electrochemical reaction. Eloxation increases the resistance to corrosion and mechanical influences, and can be used for decorative purposes (color eloxal) by subsequently incorporating colored metal oxides in the porous service. For decorative eloxation, aluminum alloys must be used