[Jewelry making - Article 00745] - Re: [Orchid] The mystery of electroetching

[David L. Huffman]

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Hi Frank;

>     What is the mystery/secret/magic formula/offering to the gods
>     about sucessfully electroetching copper, yellow and red brass? 

    Your best results for etching any metal, really, are probably
    achieved by a spray etching setup. This method has no undercut, in
    fact, the etch slopes slightly away from the resist in stead of
    cutting under it. If you are a member of SNAG, you can rent a video
    set on the technique. I believe it was Billy Jean Theid who used it
    extensively in her work, and Helen Shirk also. But the SNAG librarian
    would know. It's not terribly expensive to set up, and if you are
    planning to do a lot of etching, it's probably worth it. I've seen
    amazing results, even etching to the point where the metal is
    completely pierced through, like lace, which would not be possible
    by bath etching since the undercutting would dissolve the entire
    piece. 

David L. Huffman
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