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Lead plating with localized gold plating

2005

Dear Sirs,

I would like to know whether a product that is tin plated entirely can then be plated with gold locally or not. The base material is C5191. My supplier said that the molten tin is very easy to dissolve with gold. I just want to know is that true or not. And they suggested that it can be only plated with nickel first & then gold plated. Is it the only way for our requirement.

please Help!

Nick Poon
Stamper - HK

Why not -- according to one old book you can plate gold directly on tin or pewter (You must use potassium ferrocyanide [affil links] based electrolyte, so called Elsners bath: 15 gm potassium ferrocyanide [affil links], 15 gm sodium carbonate / washing soda [affil links]/water free/, 1 lit water, 2,65 gm cold chloride, SS anodes). Good luck!

Goran Budija
- Zagreb,Croatia
2005

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