[Case Study] Trivalent Chromium Plating Resistant to Deicing Salt in Cold Regions

The key point is our ability to use trivalent chromium plating baths for mass production with the necessary equipment and management capabilities!

We would like to introduce a case where a trivalent chromium plating that can withstand de-icing salt in cold regions was proposed. In cold regions, de-icing salt is spread on roads, and if it remains on the surface of plated products for an extended period, the plating film corrodes. Therefore, a resin plating that can withstand de-icing salt was considered. The chromium film created from a standard hexavalent chromium plating bath has low calcium chloride resistance, and corrosion progresses in environments where large amounts of de-icing salt are used. Thus, we proposed a plating using a trivalent chromium plating bath with high calcium chloride resistance. To make the appearance closer to standard glossy chrome, we developed a new trivalent chromium (silver). [Concerns] - Calcium chloride, used as de-icing salt, dissolves in moisture to generate chloride ions, which corrode the plating film. - The chromium film created from a standard hexavalent chromium plating bath has low calcium chloride resistance, and corrosion progresses in environments where large amounts of de-icing salt are used. *For more details, please download the PDF or feel free to contact us.

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