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Look of diffused nickel cadmium plate

I do not know, may the Diffused Nickel Cadmium Plate have final dark blue iridescent color? Because the normal color should vary from olive drab to black.
Thanks in advance,

Vesna Jovanovic
plating engineer - Serbia, Belgrade
2006

I have not seen it that color, Vesna. I thought it was a generally grey-ish metallic color. But instead of phrasing the proposition in an abstract way, what is your actual situation?

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2006

They either have a contaminated bath, or they are OD chromated before heat treatment which will turn it a nice black. One or more jet engine Mfg's do this.

James Watts
- Navarre, Florida
2006

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