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What is the electrolyte for making black marks on stainless steel?
I have used NaCl, HCl, KCl and copper sulphate [on
eBay or
Amazon]as electrolytes and can get nice deep etch but no colour. Does anybody know the right electrolyte?
Barry Rea
Hobbyist - Frankston ,Victoria, Australia
June 18, 2010
Try to change to AC current .
Good luck.
Khair Shishani
aircraft maintenance - Al Ain, UAE
July 20, 2010
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