[Jewelry making - Article 00739] - Re: [Orchid] Casting reheating investment molds

[coralnut]

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    All, Been doing a bit of research on this subject and believe Larry
    is correct....at least re the reheating aspect.  Murry Bovin's nice
    little book, "Centrifugal or Lost Wax Jewelry Casting for Schools,
    Tradesmen and Craftsmen mentions that a flask can be reheated
    (slowly) to the proper casting temperature. Also, I did not finish my
    thought in my last post re keeping flasks damp...like putting them
    into a plastic bag overnight.  Actually, after investing, they can be
    kept for an indefinate time by letting them simply dry up.  then,
    rehydrate them by dipping in water or wrapping them in a moist towl. 

    Seems the moistness is very important because it seal the porous
    walls of the burned out model and smooths the surface of the
    cast...it also turns to steam during wax burn out and keeps the wax
    from permeating the investment. 

    Not much scientific here but maybe a bit more info.  Cheeers from
    Don at The Charles Belle Studio in SOFL where simple elegance IS fine
    jewelry! dcdietz AT attbi.com

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