Edouard Bastarache on fri 13 oct 00
Hello Martin Howard (urbaniste, potier & esp=E9rantiste),
I am not an expert in glaze crazing but
I can not understand why maltvinegar would
make your glaze craze if it was used at
room temperature.
"At 4pm I half-filled an uncrazed 3% copper green glazed bowl with
maltvinegar.
By 9.30pm the bottom half of the inside of that bowl was completely craze=
d.
The upper part was unaffected".
Later,
Edouard Bastarache
Dans / In "La Belle Province"
edouardb@sorel-tracy.qc.ca
http://www.sorel-tracy.qc.ca/~edouardb/
Cindy Strnad on fri 13 oct 00
Martin,
Here's my theory. Some glazes hide crazing very expertly. I have had crazed
glazes where I couldn't see the defect with a magnifying glass until the
surface got a little dusty. I think, since the glaze is heavy on copper,
that the copper leached more from the crazed areas, thus enabling you to
pick them up more clearly.
Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
earthenv@gwtc.net
http://www.earthenvesselssd.com
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