[Jewelry making - Article 00373] - Re: [Orchid] Setters & Engravers Fixturing Compounds

[R . E . Rourke]

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    Vigor brand heat shield is great- reusable to some extent,if just for
    holding things in place while setting. Soldering clay is essentially
    investment but has refractory advantages if you're going to be
    applying heat to the fixed piece Siliquar containing heat shield (now
    i think it is called "place-it") works most excellently too. 

    For repetitive production work Impressionite is a cut above the
    regular jett-sett and my personal preference for large or odd pieces
    as well as repetitions of a process.One just has to put it on
    slightly more heavily than is recommended. A close 2ed to
    Impressionite is the softer form of jett-sett. There is a surplus co.
    www.sciplus.com, that sells a similar thermoplastic to regular jett
    sett but is black when dry and turns to grey when softened and is a
    fraction of the cost of jett-sett basic.. 

    I still like messy gloppy pitch and plaster though if i really want
    something held tight and another project is in one of the benchmate
    holders..and the piece requires the use of gravers (in which case i
    put blue painters tape over the stone if it has been set,or is at
    least temporarily set) 

    The thing about jett-sett that is nice is its multitudinous uses
    beyond the studio,however..the white colour can throw a lot of glare
    on a piece-for my eyes at any rate. Comparatively, the vigor heat
    shield or siliquar pastes are essentially dedicated to only one use.
    so i have a collection of consumables from orange flake shellac, to
    pine pitch gathered off of very old pines, to pre-prepared burgundy
    pitch, black pitch from the feed store, to jett-sett, siliquar,vigor
    heat shield, and Alvin brand heat block from the welding supply
    house (equivalent of siliquar containing 'place-it' at a fraction of
    the cost)... 

    So I say it depends on what you are doing with the workpiece that
    dictates the fixturing compound,and/or heat shielding properties
    necessary s to which product I choose for a given operation.There is
    no absolute! 

R.E.Rourke
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