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Japan Heiwa Kaken Successfully Develops Yellow Trivalent Chromate Plating
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2023-07-06
At present, trivalent chromates include chromates, unichromates and black variant (chromates are silver white), but they have never appeared yellow like hexavalent chromates. In the past, hexavalent chromium plating was mostly used for yellow colored products. However, in light of the global environmental issues, Heiwa Kaken has developed a surface treatment technology that can give a yellow or red color like hexavalent chromate does, even on trivalent products.
Characteristics of Trivalent Yellow:
* Giving a yellow or red interference color as does hexavalent chromate!
* Corrosion resistance is equivalent to trivalent chromate: 72 hours without white rust, 120 hours without red rust!
* No hexavalent dissolution will be detected!
* If used together with trivalent chromate, it can be used to distinguish minor differences in size and threads.
日本平和化研
黃色三價鉻酸鹽電鍍
六價鉻酸鹽
抗腐蝕能力
無白銹
無紅銹
Japan Heiwa Kaken
Yellow Trivalent Chromate Plating
hexavalent chromates
corrosion resistance
without white rust
without red rust
