Jeff Lawrence on sun 8 jun 97
> I have been collecting recipes but I have
> yet to discover a matt white or off white at 04.
I've got some reliable mats (colored with stains) at ^04 by the addition of
Alumina Oxide. The hydrate made my glaze pinhole, and too much of either
raises the maturing temp. For my production glaze, 5% was too little, 10%
was too much, 7-9% (depending on how much stain) was just right. I didn't
test the white version; I seem to recall that it was a little on the
You might try adding Alumina Oxide to the smoothest clear you have that fits
your clay body now, expecting that it will lower the expansion of your
glaze. I substituted a higher-expansion for a lower-expansion frit to stop
mine from shivering (thanks to Tony Hansen and Ron Roy for their help there).
Sun Dagger Design