Over time, as aluminum is exposed to oxygen in the air, it naturally develops a thin, transparent, porous oxide layer on its surface. Anodizing is an electro-chemical process that accelerates this process, and produces an even thicker and tougher oxide layer than would normally occur.

Since the anodizing process occurs on the surface atoms themselves, the anodic coating becomes an integral part of the aluminum surface.

Aluminum oxide is the second hardest substance known to man (sapphire), second only to the diamond. The resulting anodized surface is durable, it is resistant to corrosion, it will not peel, and under normal conditions it will not wear through. An anodised finish is chemically stable, will not decompose; is non-toxic, and will prevent the skin from being in direct contact with the metal (corrosion of the aluminium).
And last, anodising is considered as an environmentaly friendly process with no release of hazardous chemicals.

Unlike most other finishes, anodizing preserves the beauty of the metal itself, and magnify its machined texture.

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