The ball clay you use to suspend your glaze is important!

Friday 27th December 2013

I poured 4 teaspoons of two glazes onto a board and let them sit for a minute, then inclined the board. The one with Gleason Ball clay (right, much higher in coal and finer particle size) has settled and the water on the top of running off. The one with Old Hickory #5 ball clay has not settled at all and the whole thing is running downward. Below I have begun to sponge them off. Old Hickory No. 1 Glaze Clay is even better than #5 for suspension. The most amazing thing about this: There is only 7% ball clay in the recipe.

Pages that reference this post in the Digitalfire Reference Database:

No. 5 Ball Clay, No. 1 Glaze Ball Clay, Ball Clay, Suspension, Glaze Slurry is Difficult to Use

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