[Jewelry making - Article 00294] - Re: [Orchid] Two Sided Enameling

[David Popham]

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    My experience is that red/orange/and yellow enamals are the most
    difficult to use. Fire the piece with just a little too high a
    temperature or for too long a time and they go black. Too little
    heat or time and the coating is "orange peal" rather than smooth. 

    My experience is that torch-firing directly onto a copper surface is
    difficult, except for beads. The enamel powder is blown away for
    one. Also, in my case, torch firing directly onto a previously fired
    piece seems to alter the colour of the enamel. 

    My solution has been to fire on only one side. To prevent warping
    due to the different expansion coefficients of the enamel and copper
    I try to find some way of building in strength to the sheet, usually
    by fold forming. 

David
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