[Jewelry making - Article 00668] - Re: [Orchid] Ferric Chloride etching

[John Walbaum]

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Alma:

    Etched brass or copper particles need to be cleared away from the
    surface of the metal or they will interfere with the action of
    ferric chloride. (Silver pieces etched in ferric nitrate aren't
    bothered by the particles and can rest on the bottom face up.) Hence,
    the piece needs to face towards the bottom to allow the particles to
    fall away. The best way to accomplish this is to float the piece.
    (You can superglue styrofoam from packing material or a cooler onto
    the tape across the back of the piece.) There are two more reasons to
    float the piece: One, because it's much easier to check your work,
    and without possibility of accidentally knocking off the resist with
    tongs; and two because the flotation will also gently agitate the
    piece--especially if you have good airflow. 

    I'm not familiar with Canon copiers. I usually just run off PNP at
    the Kinko's. But I doubt the material would jam in your printer if
    you single-sheet feed it. 

John Walbaum
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