Zinc Trivalent Chromate
Trivalent zinc chromate is an eco-friendly alternative to traditional hexavalent zinc chromate, offering superior corrosion protection and compliance with environmental regulations.
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Trivalent zinc chromate is a type of chromate conversion coating applied to zinc-plated surfaces. This process enhances the corrosion resistance and adhesion properties of the zinc layer, making it suitable for various industrial applications. The trivalent form of chromium used in this process is less toxic and more environmentally friendly compared to its hexavalent counterpart, which has raised health and environmental concerns.
Also known as “zinc blue” or “RoHS zinc,” this type consists of electroplated zinc followed by trivalent chromium (Cr³⁺) conversion coating.
Unlike yellow zinc, it’s RoHS-compliant and less toxic. But the process comes with a higher cost, and it’s not as corrosion resistant as yellow zinc.
