[Jewelry making - Article 00900] - Re: [Orchid] Carving wax vs. injection wax?

[Pat Hicks]

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    Hi Daniel.  There was something on this subject some time ago and I
    must have been too busy to inquire then, but what, exactly are the
    symptoms of the problems you have ?  I have been casting carving wax
    for a very long time, far more than injection wax, and most of my
    students use it as well.  There have never been any problems that I
    could possibly identify as having to do with expansion of that wax. 
    Our flasks follow an automatic kiln setter program at school and a
    recommended one for Satin Cast 20 in my own shop.  I do mix
    investment by eye to a great extent, making it a bit thicker or
    thinner depending on the models needs.  No problems at all.  Have
    honestly, in over 20 years, never lost a flask.  So this must not be
    something specific to carving wax, but some other reason you are
    thinking expansion damage.  Now I'm curious.  As well as very happy
    we're doing something right. 

Pat


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