Earl Brunner on tue 27 apr 04
Classic example if a microcrystalline glaze that needs slow cooling to be
Cone 10-12 Mat from Glen Nelson's Ceramics: a potters handbook.
P. Spar 40
Titanium Ox 4.4
This glaze was ALWAYS mat in the Alpine kiln at school.
Without firing down, it was ALWAYS glossy in my downdraft I built that had a
brick up door. The brick up door just leaked air and let it cool too fast.
Las Vegas, NV
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of John
Sent: Tuesday, April 27, 2004 10:40 AM
Subject: Re: Ash glaze -Micro-crystal - Controlled cooling - fact check
On Monday, April 26, 2004, at 06:43 AM, May Luk wrote:
> From my participation with clayart and my glaze studies, I managed to
> "maybe controlled cooling?" Another very experienced potter, who is
> also a
> ceramic tutor spoke with authority [a man potter!] saying, it has
> nothing to
> do with the cooling, it has to do with blah blah [at this point, I
> out with what he said about "blah blah", because of his tone of
> voice.] He
> went on to say, it's micro-crystal, that has nothing to do with
> Only large crystal - as in zinc silicate crystals requires slow