Grog, CE47, Calcined Mullite, Mulcoa, 14 x 28 Mesh, FreeShip.
$6.64
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Grog is normally used in ceramics as a clay body additive which gives texture or "tooth" to a clay when green (pre-fired). It also "opens up" a clay body allowing thorough drying, thicker walls, faster temperature rise when firing, and lessens the chance for a piece exploding during firing. It helps with thermal shock. It "aerates" a clay so that pots when thrown (for example) will have increased strength and stand up better when throwing. It reduces shrinkage and warping. It can also be mixed with resins for aesthetic, physical strength, and filler (extender) reasons....(see more)
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