Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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The best solution for blackening polished nickel [Scotland]
Very simple what is the best solution for blackening polished nickel
Robert Gearybagpipemaker - Scotland
June 24, 2010
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, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
June 28, 2010
Blackening of nickel:0,5 gm potassium thiocyanate
⇦ this on
eBay
or
Amazon [affil links]
5 gm sulfuric 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!
- Cerovski vrh Croatia
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