During anodization an artificial skin is created on the profiles surface by an electrolitical treatment
As this skin in contrast to the natural skin is flat and consistent, it ensures high corrosion and wear resistance.
This skin provides aesthetic look, as well beyond the high corrosion resistance. Sapa also supplies profiles with coloured oxide layers. The mostly used form of anodizing is natural anodizing, which means that the aluminium keeps its original bright colour.
The mostly used coloures are the different dyes of brown and the black. Beyond these the gold is possible too. These coloring matters and treatments allow the outside use of the profiles because of the high weather and light ressistance.
The thickness of the anodized layer is according to the customers demand.