Silica 325 as substitute for flint

Submitted by anniespottery on Sun, 08/19/2007 - 9:48pm. ::

Can I use Silica 325 as a substitute for flint in a cone 6 glaze containing nepheline syanite and ball clay?


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clayguy31
Silica and Flint
Submitted by clayguy31 on Mon, 08/20/2007 - 1:32pm.

Silica and Flint are essentially the same, except flint may have trace amounts of limestone(CaO) but are terms often used interchangeably in ceramics. Typically, most cone 6 glaze formulas that require flint/silica use 325 mesh silica. I hope this helps!


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