[Jewelry making - Article 00268] - Re: [Orchid] Dry Gold?

[Terry Ogden]

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Neil

    While I am ignorant of the term, the effect I am very familiar with.
    The same act occurs on Al when mixed with a high ratio of zinc. As
    you heat it, it just suddenly falls apart right at the temperature
    of repair. The advantage to the manufacturer is that casting is
    faster, better and cleaner than a normal casting mix. Immediately
    after casting you can see a difference but after polishing you would
    see none until you heat it. 

Terry
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