[Jewelry making - Article 00332] - Re: [Orchid] Bead blasting to clean castings

[John Dach]

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    Not really. We used a VERY small bead size and used it on pewter,
    silver, bronze and gold. The beads do not remove metal but actually
    peen the surface. If one dwells for a long period of time on one
    spot, metal will be moved/removed but if just a bit of care is used,
    there is no problem. 

John Dach
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