Originally Posted by
knucklehead
Hey Lux
when you put a piece in the pickle after annealing/soldering, the pickle will remove that top layer of copper resulting in a silver surface, but that surface in only microns thick and when polishing that can be worn away to reveal more copper underneath. I understand there are 2 methods to resolve this 1 being elbow grease polishing to reveal of the silver underneath (and if those radial wheels/micromesh are working for you, use them) or 2 dip solution in nitric acid solution (40% to water) which will remove copper oxide. this method is referred to as bright dipping ...although I would not recommend anyone to keep nitric acid ...only heard about it
so i would say stick with your new polish materials
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