metal surface treatment chemicals

Zinc-Nickel Alloy Plating Additive

Zinc-nickel alloy plating additive is designed for alkaline or acid zinc-nickel bath systems to co-deposit zinc and nickel in the optimal 12-15% nickel composition range, which provides corrosion resistance 5-10 times greater than pure zinc plating of the same thickness. The controlled alloy composition is critical for achieving maximum cathodic protection and corrosion resistance that meets automotive OEM specifications. Zinc-nickel is the preferred coating for automotive brake components, fasteners, and structural parts requiring superior corrosion performance.

metal surface treatment chemicals

Zirconium Passivation Agent

CAS: 7699-43-6

Zirconium passivation agent based on zirconyl nitrate or hexafluorozirconic acid forms a thin, dense zirconium oxide conversion layer on aluminum, steel, and zinc substrates. This chromate-free technology provides excellent corrosion resistance, outstanding paint adhesion, and minimal environmental impact with near-zero sludge generation. The zirconium conversion coating has become the standard pre-treatment for aluminum coil coating and automotive multi-metal pre-treatment systems.