is there a fix?
I was soldering a joint on a silver ring. Piece was properly coated
with boric acid/alcohol solution and burned off. Then fluxed. Easy
silver solder ball placed with pick at joint and both molten solder
ball and piece turned red, but solder did not flow. Figured surface
was not clean, so I decided to start over and insure the joint and
piece was clean, etc, etc. Piece came out of the pickle now
black/grey in color, not silver. (firescale?) Changed my pickle
solution (sparex) with no change.
Is there any way to recover this piece at this point? Or remove the
firescale, if that’s what it is. I’d like to get the silver color