Chromium VI-Free Passivators are trivalent surface treatments developed to improve the corrosion protection of zinc-plated parts, offering a safer and more environmentally responsible alternative to conventional hexavalent chromium passivation. Their formulation enables compliance with international specifications such as RoHS, ELV, and ISO/EN while maintaining high technical performance in demanding industrial applications.
Within this range, TRICOAT 342 stands out as a golden-yellow trivalent passivator that achieves a finish similar to conventional hexavalent chromium passivation without the need for subsequent dyes. In addition, these systems can produce different finishes, including iridescent, blue, and black colors, adapting to the functional and aesthetic requirements of each part.
These passivators offer up to 200 hours without white corrosion in ASTM B117 salt spray testing. They also provide thermal stability up to 200°C and excellent performance in thermal shock tests, making them a reliable solution for metal components that require protection, durability, and environmental compliance.
Up to 200 hours without white corrosion in ASTM B117 salt spray testing.
They are environmentally friendly trivalent passivators that comply with RoHS, ELV, ISO/EN, and similar specifications.
Stable up to 200°C and with excellent performance in thermal shock testing.
Iridescent, blue, and black finishes can be achieved.
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