Graeme Anderson on wed 5 jul 00
The original posting said to fire a cone 6 glaze to about cone .06. (in =
nice round figures -1000 C./1800 F., depending on size of cone and speed =
of firing.) Perhaps you could do this in a bisc firing.
At this temp. the glaze should be fusing but not setting into a solid =
glaze, so it should be fairly easy to break up.
In Sanders book "Glazes for Special Effects", in the section on making =
your own frits, he recommends a wide, low, bisced bowl, as a saggar. =
Mix silica with water to a medium-thick slip, and brush the silica slip =
on the inside of the bowl to a height !/2" above the maximum depth of =
the frit mixture. Allow to dry properly.
Thoroughly mix and sieve your glaze, and spread it carefully in the bowl =
without disturbing the silica. Depending on the amount of glaze you =
want to prepare, it may be better to use several bowls, as the thinner =
the "cake" of glaze is, the easier it is to break.
I hope this helps. I haven't tried it myself - yet!
Graeme Anderson. Gemopal Pottery. Lightning Ridge.Australia. 2834.
http://www.turboweb.net.au/~gemopal/
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