Antoinette Badenhorst on sat 15 jan 00
Let me try again. As far as I know,there are 3 main
clay bodies. Earthenware, stoneware and porcelain.
The way that the glaze reacts to the clay body will
put it in a category.
Earthenware will make a glaze layer and will not react
with the clay. Stoneware will start a reaction, but
one will be able to see where the clay and glaze
separate. In porcelain there is a full reaction
between clay and glaze.
If one talks about translucent or not to qualify as a
porcelain body, I guess it depends on what you want to
achieve. For instance, I use English grolleg
porcelain,when I am in the mood for real clean and
fresh looking surfaces and also for translucency. I
also uses it for it lightness in my pit fired work.(I
guess there may be cheaper porcelains for that purpose
that I did not try out jet).Then I also uses it if I
want the best out of a glaze color. Sometimes I use
B-mix which is described as a porcelaineous clay body.
I get different colors from this than from porcelain,
but the real porcelain can be burnished very smooth
comparing to the B-mix. Porcelain will destort easily
on high temperatures if not well designed.Porcelain is
normally a thirsty clay that will easily become too
wet when throwing.One need to work with just the right
touch. That is the reason why I think it is considered
a medium for advanced throwing.If one go back to true
porcelain clay recipes , there will be very slight
differences between them.
Antoinette(with about 5 years experience in
porcelain,which makes me only a beginner!)
=====
Antoinette Badenhorst
PO Box 552
Saltillo,Mississippi
38866
Telephone (601) 869-1651
timakia@yahoo.com
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