Kit DeCew on wed 4 sep 96
I inherited an old randall wheel with about 30 plaster batts. They have not
been used for a very long time, and I live in Denver...very dry climate. My
problem is that my student's clay will lift off the batt while they're
throwing. The bottom of the piece usually looks as though air has come up
from the batt and created an air pocket between the clay and the batt. I
know they are putting the ball of clay on correctly, this happens after they
have been trying to center it for a while, or even when opening the center.
Should these batts be treated with a sealant of somesort?, soaked in water
for a while?...??? I used these types of batts in Indiana, and had no
problems like this, so I wonder if it's the age, dryness, or what?
Thanks in advance...
Kit DeCew, Owner Kit's Clay Club, Denver, CO
Bob Hanlin on wed 4 sep 96
>----------------------------Original message----------------------------
>I inherited an old randall wheel with about 30 plaster batts. They have not
>been used for a very long time, and I live in Denver...very dry climate. My
>problem is that my student's clay will lift off the batt while they're
>throwing. The bottom of the piece usually looks as though air has come up
>from the batt and created an air pocket between the clay and the batt. I
>know they are putting the ball of clay on correctly, this happens after they
>have been trying to center it for a while, or even when opening the center.
>Should these batts be treated with a sealant of somesort?, soaked in water
>for a while?...??? I used these types of batts in Indiana, and had no
>problems like this, so I wonder if it's the age, dryness, or what?
>Thanks in advance...
>
>Kit DeCew, Owner Kit's Clay Club, Denver, CO
>
>
Sometimes that happens if the bats aren't allowed to dry enough between uses.
BobH
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