Penny Hosler on sat 9 jan 99
Perhaps someone can help with this. I glaze fired a bunch of 9x9 tiles
(low-fire slip cast)to =5E06. One test tile had been underglazed in the =
bisque
firing, one underglazed =26 glazed after bisquing, and the rest just glazed =
on
bisque with no underglaze. I was trying to see if the underglaze recipe =
would
work on bisque as well as greenware. All used the same clear glaze. Both =
of
the tiles with underglaze cracked nearly in half. The UG recipe is :
25 - EPK
25- OM4
15- Frit 3124
5 - Talc
20- Flint
+ various 2-15=25's of Mason stains
Is there something inherently wrong with my UG recipe that could be causing
this? Also, the colors on the bisqued tile came out somewhat less intense =
than
when used on greenware. Normal?
TIA
Penny in WA
pshosler=40olypen.com
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