VCHROM-AL White Chromatising White chromatising refers to a type of chromate conversion coating that produces a clear, white, or colorless film on metals such as aluminum, zinc, or magnesium. It is commonly used to enhance corrosion resistance and paint adhesion, without significantly altering the appearance of the base metal. White chromatising typically refers to a chromate conversion coating that leaves a white or colorless finish on metal surfaces, particularly aluminum or zinc. * What Is White Chromatising? Chemical process: Involves applying a chromate solution (historically with chromium compounds) to the surface of a metal. Appearance: Leaves a white, bluish, or colorless film. Type: Often associated with trivalent chromium systems (Cr³⁺), which are safer and more environmentally friendly than traditional hexavalent chromium (Cr⁶⁺). #VCHROM-AL White Chromatising Manufacturer.