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Letter 28066
PNP Plating
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I am a chemist working in Newark New Jersey. One of my customers
has a gold watch and said the band and case were plated by an acid
gold process called PNP plating. I heard of electroless plating, acid
bath plating, vapor deposition plating, but not of PNP plating. What
is PNP plating? If you find the answer, please refer me to some
literature to learn more about it. I have the
Metal Finishing Guidebook, but I
could not find any reference.
Thanks,
Yves Midy
chemist laboratory - Newark, New Jersey, USA
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A quick web search indicates PNP is Palladium-Nickel plating
usually used as un undercoat.
Tom Gallant
- Long Beach CA USA
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