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I have been trying to find an answer to this online with no result. If I were to mix two kinds of premixed casting slip with different shrinkage rates, what would happen? Would the shrinkage average out or would a mushroom cloud obliterate my dad's kiln shed? We want to try mixing Laguna Oriental Pearl (shrinkage 14%) with Lagina White Stoneware (shrinkage 10%). I know that stoneware/porcelain blends exist as a clay form, but I'm not sure how it works with slip.
I need to end up with a 12" tile at 1/2" thick. I read that the shrinkage rate is 12%. Is that after the final firing? And does that also pertain to the thickness? Firing to ^5. Using Laguna WCâ€‘401 Bâ€‘Mix 5 Clay. Thank you. Linda