Dan C Tarro on thu 10 jul 97
For years I have used the traditional plywood bats. Lately I have taken
the advice of another potter and tried plaster. The material seems to do
well when it comes to transporting larger pieces from wheel to drying
rack without the distortion that plywood sometimes is guilty of. Where I
have the problem is, I was left with the impression that the pots would
self-release when they started drying. Five days later and the pots are
just starting to let go. (It is not because of a wet bat, they are plenty
dry.) When they do, they sometimes let go from the inside out hanging up
on the outside rim resulting in a crack in the center. I am using potters
plaster which is designed for bats. Mixing to factory specks. What am I
doing wrong? Any one else out there have this problem. I have resorted to
running a wire under the ware and using the bat to speed the bottom
drying. Works but I feel that this is a compromise from the original
intent of the bat. Am I asking to much of the material? Should I be
mixing for a more porous plaster?
Thanks in advance,
Dan Tarro
Oak Tree Stoneware
Ham Lake, Mn.
Cheryl Fisher on fri 11 jul 97
I use plaster bats exclusively. I only have this problem if the item
is wide like plates. I usually run the needle tool around the edge of
the bottom to release the edge to help in drying. I threww 10 small
plates Tuesday evening and they were ready Wednesday morning. They
were still a little tight but they could be pulled off without
problems. I threw some bowls the day before and they were ready the
next morning. I cut in with a wooden tool then I cut under with the
needle tool. It seems to help.
Cheryl, Sarasota, FL
cafish@gte.net
cfisher995@aol.com
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