This is done to achieve the required mechanical specifications of the profile.
Either of the following surface treatment methods can be applied to protect the profiles from oxidation and corrosion: -
Through the method of coating the profile surfaces with powder paints using electrostatic processes, in the required colors.
Using electrolysis techniques, the profile surfaces are protected with an aluminum oxide layer, with a thickness up to 25 microns, in colors such as (Silver – Champaign - Gold - Brown – Black) and all of their shades.