Electroplated zinc-nickel alloy trivalent colorless passivation
Trivalent chromium-based colorless passivation of zinc–nickel alloys
The figure shows photographs of the specimen before and after a 240-hour salt spray test. Following the test, the surface of the component retains its luster, with no corrosion pits observed, demonstrating excellent resistance to salt‑spray corrosion.
l replaces traditional hexavalent chromium passivation
The coating exhibits uniform coloration, with a bright silvery-white hue.
It can withstand temperatures up to 100°C without compromising its corrosion‑resistant performance.
Eco-friendly, safe******, easy to operate, and produces no pollution in wastewater treatment.
l Tested by the SGS‑CSTC Chemical Laboratory, it complies with the EU RoHS standard and withstands the GB/T 10125 neutral salt spray test for up to 240 hours.
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