I.Lewis on sun 8 aug 99
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To: Subscribers clayart=40lsv.uky.edu
From: Ivor Lewis iandol=40pirie.mtx.net.au
Saturday, 7 August 1999
Subject: Kiln Wash and other protection.
Yes, I use the idea put forward by Dale A. Neese of putting coarse powder on
shelves rather than kiln wash. But not Silica. For several years I have used=
100
mesh Alumina, a coarse powder which runs like the stuff in an hour glass.
studio. We all recognise the health hazard, as Dale points out, but there is=
a
potential technical problem. Having a relatively low melting point as a
refractory, silica will tend to sinter at stoneware temperatures. Hence it =
may
tend to adhere to the pot or the shelf. This does not happen to Alumina in
stoneware firings.
Thanks Dale for a lot of good practical advice.
Ivor Lewis.
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