[Jewelry making - Article 00049] - Re: [Orchid] Keum-boo hot plate

[Cynthia Eid]

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Hi Paul,

    I have used both torch and hot plate to do Kum Boo with Argentium.
    (I spell it Kum after discussing it with Komelia Okim, who brought
    the technique to the U.S. From Korea). I learned from Celie Fago's
    book, and demonstrations by Komelia Okim and Paulette Werger.
    Paulette and I both feel that there is a better bond with AS if it is
    first annealed and pickled (one time is enough), and then scrubbed
    with baking soda. I feel that I get a better bond on AS if the
    surface has a bit of texture, but Paulette does not feel like it
    makes a difference. The 1300 watt hot plate will be fine. As with SS,
    soldering after kumboo tends to make the fold "fade" and alloy into
    the silver. You can use this to get shades of color to make an
    interesting design, or use thicker gold, or make sure that the gold
    application is after all soldering. 

Cynthia Eid
http://www.cynthiaeid.com
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