[Jewelry making - Article 00174] - Re: [Orchid] Article: Minimal Metalsmithing

[John Walbaum]

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Nanz:

    I think you may have outdated information about PMC. It is amazing
    material, and while, as you say, it is porous, you can achieve quite
    durable external surfaces by tumbling with steel shot. I imagine
    Elaine will have quite a lot to say on this matter, but it certainly
    is not fair to write it off as unsuitable for jewelrymaking. 

    Nor can I imagine Tim McReight would have written two (or is it
    three?) books advocating its use if it was as brittle and weak as
    you imply. Both PMC and Art Clay versions on the market today can be
    soldered, shaped, filed, sanded and otherwise worked. No, they don't
    have all the properties of sterling silver, but the ones they do
    have (extraordinary workability and flexibility prior to firing) make
    PMC highly attractive for one-of-a-kind and unusual pieces where
    casting is not economical. 

John Walbaum
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