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   | The Anodising Process The anodising process involves passing a controlled electrical current through extruded aluminium profiles immersed in an acidic (sulphuric) solution, which then forms a protective film of aluminium oxide on the surface of the aluminium. Anodising essentially is an induced thickening of the natural protective oxide film on the metal’s surface. It is a conversion of the parent metal and thus is not a “coating” in the usual sense.
It is proven as a very durable finish, of which the lifetime is dependent on the density, thickness and seal quality of the anodic film. |
