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Lesson Plans


Re: Patching clay

[ Thread ][ Subject ][ Author ][ Date ]
George Martin Rex (grex)
Tue, 22 Dec 1998 17:19:29 +0500

On 23-Dec-98, WRapf wrote:
>Vinegar does work (about 80% of the time). As does Acetic acid. What an
>acid does is reduce the amount of shrinkage that occurs as the clay dries.
>This is often enough to prevent a cracking when repairing a chip off a
>greenware piece. At school, because I never seem to have Vinegar, we use
>photographic stop bath. Handles can be replaced, chips placed back, and
>cracks filled with a clay slip made from moist clay and an acid. I don't
know
>why it doesn't always work, but we've had overall success with the process
for
>the 25 years I've been teaching pottery.

>Bill R.

-- 


Never fails for me.




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