Trivalent Blue Passivation is an environmentally friendly, RoHS-compliant surface treatment applied to zinc-plated components. It forms a thin, transparent to bluish film that enhances corrosion resistance without the use of toxic hexavalent chromium. This process is commonly used in the automotive, electrical, and hardware industries, offering a clean, aesthetically pleasing finish along with moderate protection against white rust. When combined with sealers or topcoats, trivalent blue passivation provides extended durability and is ideal for components exposed to indoor or mild outdoor environments.
