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topic 542

Rhodium plating isn't sticking to stainless watchband


(1996)

Want to touch up some Rhodium or Gold plated [I'm assuming...] Stainless watch band sections. Gold doesn't seem to stick using a little pen plater and CN based Au solution, is there a method to make it stick, or will Rhodium do better?

Thanks / mark

Mark Fraser



(1996)

The question is not gold vs. rhodium. All platings can be made to adhere perfectly. The problem is that the surface must be made clean and active. It sounds like you're not doing the necessary prep. Stainless is difficult to activate. After cleaning, you need a Wood's Nickel strike before the plating.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


(1996)

Um, uh, thanks for the reply. What's a Wood's Nickel strike?

Mark Fraser



(1996)

The pen plater alone won't do the trick. You do need to activate the stainless and use a nickel preplate to get either gold or rhodium to stick.

If you are working with localized areas, we have some tooling and solutions that should do what you need.

Derek Vanek
Independence, Ohio


November 30, 2008

Hi, Mark. Wood's nickel is a high chloride strike designed to activate stainless steel. There are many threads here on that subject. You could start with letter 31138. Good luck.

Regards,

Ted Mooney, finishing.com
Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey



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