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Can copper/nickel replace the clear chromate?

The salespeople make a mistake when they order a product. it is supposed to be zinc plating with clear chromate. it turns out copper/nickel plating. I would like to know how is copper/nickel 's corrosion resistance capability compared with clear chromate. can copper nickel pass a 12 hours salt spray test? can anybody give me answer.

Ken Zhang
- Miami, Florida
2006

You wanted a Chevy and you got a Cadillac. There can be, of course, situations where zinc plating and clear chromate will be better than copper and nickel plating because the former offers sacrificial protection. But, in general, copper-nickel plating is a premium finish and should outlast the zinc both in a test chamber and in the real world.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
2006

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