Alan Wainright on wed 24 jul 96
Syrylyn wrote:
> I want to make plaster press molds for my necklace medallions. Now should I ma
or can I use a bisqued piece? What can I use as a release agent if I do it off a
a bisqued piece is to reduce it in size by firing it.
I took this question to Dick Tonneson, one of Georgie's owners, &
here's his advice:
"You can make your molds from either bisque or unfired clay.
Bisque pieces need to be sealed using mold soap, Murphy's Oil
Soap, or something similar. Clay only needs a light coating of
shellac.
"Just fasten your piece to the bottom of a tin pie pan (or
something similar, seal the piece, make sure the edges are flat
to the surface (so plaster doesn't get underneath), and pour
plaster.
"Removal of the bisque may be difficult. You may need to chip the
bisque piece from the mold. If this is necessary, you repair the
mold by retooling, sanding & doing a little general clean-up --
which may be necessary anyhow.
"If you make your mold from an unfired clay piece, just dig it
out.
"For hand-pressing medallions, I recommend making your mold from
Pottery or Hydrostone plaster."
"Thanks & good luck!"
Alan
georgies@worldnet.att.net
P.S.> What kind of medallions do you make? Do you have a flyer or
pictures? If so, please let me know. I'd like to see them!
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