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Removing firecoat after silver soldering

I have been making charms and lapel pins using sterling silver and jeweler's bronze for some time now and struggle with firecoat removal after silver soldering jump hoops and pins/posts to them. I also hard enamel many of these charms at 1400 degrees adding to the firecoat problem. It was suggested I try nitric acid to speed the process however I was hoping to find a safer alternative to this perhaps something organic to remove the firecoat and reduce polishing time. Thank you.

Vincent Romano
hobbyist - Walnut Creek, California, USA
August 26, 2008

Try next webpage: users.lmi.net/~drewid/PWR_Pickles.html
Hope it helps and good luck!

Goran Budija
- Cerovski vrh Croatia
August 30, 2008

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