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topic 55263

The best solution for blackening polished nickel [Scotland]




June 24, 2010

Very simple what is the best solution for blackening polished nickel

Robert Geary
bagpipemaker - Scotland


June 24, 2010

Hi, Robert. Unfortunately, the simpler a question is, the harder it usually is to answer it because we then have to try to account forevery possibility. But the best way to get black nickel is to have the plating shop electroplate black nickel rather than to try blackening processes as field options. Is that a good answer for your situation or a bad one?

Regards,

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


June 28, 2010

Blackening of nickel:o,5 gm potassium thiocyanate
5 gm sulphuric acid
25 cc hydrogen peroxide(30%)
water 1 lit
pH 1-2
According to D.Fishlock,Metal Colouring,Teddington 1962.
Hope it helps and good luck!

Goran Budija
- Zagreb, Croatia



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