Chromating, or chromate conversion coatings, are extremely thin chemical coatings that provide a couple of desirable characteristics to the surface of aluminium and zinc parts such as:
Alchrom is a chromatic chemical for aluminium surface and its alloy components. The coating can be painted or left unpainted as required. Alchrom coating is integral with the metal and will withstand bending and denting of the surface.
Zinchrome is chromate conversion coatings for zinc & its alloys and zinc plated components.