Crystal & Non-Crystal Glazes
Posted 07 July 2012 - 05:41 AM
My confusion lies in the fact that the crystal glazes usually have a hold time at the end of the firing cycle while the non-crystal glazes don't. Then, some crystal glazes have a slight cool-down and then a hold.
Would this adversely affect the non-crystal glazes? Or can they be fired with the crystal glazed pieces?
Posted 07 July 2012 - 11:52 AM
Contemporary Fine Colored Porcelain
>TRY ... FAIL ... LEARN ... REPEAT"
" If a sufficient number of people are different, no one has to be normal "
Posted 07 July 2012 - 11:56 AM
The whole kiln is a crystalline load.
Posted 07 July 2012 - 12:53 PM
The glazes are the type that have the complicated firing schedule so that the crystals are formed during the hold-cooling process. And, I kinda thought that might be detrimental to regular glazes. SO ... crystalline glazes only in the load.
Next is firing schedule. I'm using a Skutt KS-818 with an add-on electronic controller. The kilnsitter has to have a cone in it; so, I generally load a cone 7 and then fire to cone 5 before beginning the first hold. But, somehow, the kiln gets hotter and hotter until the cone melts, shutting off the kiln. I don't get that cooldown-hold part of the programming before the kiln errors out. I'm getting a few crystals but think there would be more if I can get the programming figured out.
Any ideas or suggestions?
Posted 10 July 2012 - 08:02 AM
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