Black patina on leaded copper foil.
by Gail
Lately my black patina wipes off when I buff the wax. I have tried different wax, a new bottle of patina and still have the same problem. Any advice? Answer I'm a bit confused by your "title". You are calling it leaded copper foil. Is it framed with lead and the black is comming off the lead, or is the black coming off the beaded solder lines on the copper foil? If it's coming off the lead, you should be using a black patina specifically made for lead. I put the patina on the lead before I frame the piece, then dab the solder joints when I'm done soldering. If it's the beaded solder lines, you can read the Black Patina Tutorial on my web site. The section on black patina is towards the bottom of the page. Using salt or vinegar in the patina does make a difference. Instructions about how much to use are in the tutorial. |
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