Through an electrochemical process, known as anodization, the aluminium surface is transformed into an extremely hard and scratch-resistant aluminium oxide layer. This oxide layer protects the aluminium from direct mechanical impact, in addition to being weather and corrosion resistant. Vibrant colours, solidity, long durability and excellent environmental protection are just some of this surface’s advantages. The range of use for this product are very broad: from architecture, to superstructure work or automotive engineering.
Under anodized oxidation, the aluminium surface is converted into a colourless, crystal-clear, transparent aluminium oxide layer. This surface retains the metallic properties of the aluminium.
The transparent anodized layer can be coloured with metallic salt solutions. The colour effect is not produced on the surface of the anodized layer but is protected at the bottom of the pore.
The transparent anodized surface can be coloured also by means of light-resistant dyes. In this case, the colour elements build a layer around the walls of the voids. This colouring is especially vivid and shows a metallic impact.
The combination of electrolytic colouring and adsorptive immersion colouring, allows for the production of additional weather-resistant and more saturated colour shades in various brightness levels.
Compaction is the final step of the anodizing process and is the most crucial step to produce the required resistance against weather and corrosion.