[Jewelry making - Article 00094] - Re: [Orchid] Superglue and soldering

[David L. Huffman]

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Hi Todd;

>     ... I thought it would be good to use superglue to hold the piece
>     together prior to putting into the molding compound, then let dry
>     and then burn out the superglue, then solder. Anyone tried this? 

    Okay, here's some free trade secrets. 

    In anser to your question, yes, more or less. What are you referring
    to when you say "molding compound"? I have done this a couple of
    ways. One way is to super glue the pieces together, then use a fast
    setting investment plaster, sometimes called "number 2 plaster". You
    can get something like it from Rio Grande, but you can also get it
    from C.R. Hill Co. 248-543-1555 

    C.R. Hill Co.
    2734 Eleven Mile Rd.
    Berkley MI 48072-3078

    Super glue works fine, but epoxy won't and it's nasty when you burn
    it. Other glues, well, you can experiment, but use ventilation. 

    You have to engineer the set up so that the plaster holds the pieces
    in place, yet doesn't cover the areas where you need to solder. Also,
    the plaster will act as a heat sink, so try and set it up so that
    there's as much distance as possible between plaster and solder
    joint, but still the pieces are stable in the plaster. A quicker
    version I've discoverd is this. Glue the pieces together, then bury
    them in fine wet sand. Again, the plan is to get them to stay
    together after the glue burns off but not have them so deeply buried
    in the sand that you can't solder them. When you've got them placed,
    touch the sand in a few places with tissue or paper towel. This will
    "wick" off the water and the sand will lock in tight around the
    piece. 

David L. Huffman

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