Sealing Everything from Stones to Bones to Protect Them While Electroforming

Sealing Everything from Stones to Bones to Protect Them While Electroforming

I get asked a lot about what stones, fossils, bones and shells need to be sealed with a protective coating before putting it into the copper electroforming bath. Also, what is the best way to seal these things so they don't get etched, dissolve or contaminate our bath?

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