Ric Swenson on tue 12 dec 06
Hey y'all...
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I believe if you use a hard plaster...such as USG. ceramical, hydrocal, or =
equivalents from Georgia -Pacific and even US #1 pottery plaster you should=
not have problems with flakes of plaster causing "lime popping" in your fi=
red clay after fired pieces... when they eventualy absorb moisture and POP =
off pieces of clay/glaze and cause a defect with a small white dot inherent=
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Mixing the plaster by weight is a 'no brainer'...easy to do.... and leads t=
o good hard plaster...absorbent and excellent for wedging and drying clay.
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Covering the plaster surface with canvas seems redundant to me, but have se=
en it a lot. Never saw the need for it myself.
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I always made bats of plaster for wedging/kneading out of a Hard plaster a=
nd put an electrical pipe heater cord in the wooden BOX base before casting=
the plaster to aid in drying of the wedging table if need be. Plug it in a=
nd the plaster dries quickly.
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Just my 2 cents...which I think I talked about on Clayart in 1995 or 1996?
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Cement seems like it might work well too, but I've never tried that........=
. yet.
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From Ric in JingdeZhen, P.R of China... where the temp is low and the humid=
ity is high. Brrrrrr..
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