Within the scope of aluminum door and window industry, there are two protective coating processes in common use: Protection by electrostatic powder coating or anodizing process to create a protective coating.
Anodizing process is not very economical as it requires highly purified aluminum and a large amount of aluminum is wasted in the process. These coatings provide a highly polished surface with matt effect very similar to the one produced in the anodizing process. They are applicable to all aluminum substrates and maintain their gloss in various temperatures.
