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Gas bubbles/copper plating seperating from zenc??
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<p>[QUOTE="Oldhoopster, post: 3781857, member: 84179"]They are defects that occur when zinc blank is electrolytes with copper. Usually from contamination or blanks that aren't thoroughly cleaned. Basically, it's where the copper hasn't stuck to the zinc. These were very common in the early days of the zincolns but the supplier seems to be a lot better now[/QUOTE]</p><p><br /></p>
[QUOTE="Oldhoopster, post: 3781857, member: 84179"]They are defects that occur when zinc blank is electrolytes with copper. Usually from contamination or blanks that aren't thoroughly cleaned. Basically, it's where the copper hasn't stuck to the zinc. These were very common in the early days of the zincolns but the supplier seems to be a lot better now[/QUOTE]
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Gas bubbles/copper plating seperating from zenc??
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