Letter 8067

Trivalent Chromate Plating Enquiry 

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Dear Sir,

I would like to know more about trivalent chromate plating? Is it similar to hexavalent chromate plating? And, pls tell me how to make up this bath or any supplier is provided this chemical in the market.

David Koo
- Hong Kong

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There are a number of suppliers of Trivalent chromium plating, I hope that is what you are writing about. The main differences between the two processes, trivalent Cr and HexCr is the amount of metal and operating pH. There are a number of papers written about Trivalent Cr plating and the differences between the two processes listing the + and - of each process.

George Shahin
Atotech USA Inc.

Rock Hill, SC

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