Sandvik offers a reel to reel electrolytic passivation process for aluminum alloys to enhance the natural oxidation layer for enhanced dielectric behavior.

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The anodized layer also provides the benefit of hardening the surface for better abrasive wear, when necessary for the application. The typical thickness of the anodized layer is 0.005 to 0.010 mm (0.0002 to 0.0004 in.). The anodization process can be applied to round as well as ribbon wire.