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topic 17380

Electroless nickel plating on a yellow chromated detail


2002

Is it possible and suitable to use electroless nickel plating on a detail that has already been yellow chromated? The detail is a screw UNC7/8x8" to be more exact.

Best regards,

Cecilia Vinghammar
- Falun, Sweden


First of two simultaneous responses -- 2002

It is veasy to strip the chromate and the zinc coating. Then you can plate the item. I would not even consider the possibility of putting the electroless nickel on top of the zinc chromate.

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


Second of two simultaneous responses -- 2002

Cecilia,

The screw is already plated with zinc and yellow chromate. You must stripped the screw first from zinc, and after that plate with electroless nickel.

Regards,

anders sundman
Anders Sundman
4th Generation Surface Engineering
Consultant - Arvika, Sweden


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