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Talc particle surfaces do not wet as easily. Other mineral powders (like feldspar, silica, even clay, will wet and sink immediately). Yet even after 30 minutes this still had not submerged. Pugging clay bodies containing talc can be difficult for this reason. Laminations can be a problem even with small percentages of talc.
Materials |
Talc
A source of MgO for ceramic glazes, a flux or thermal expansion additive in clay bodies, also used in the manufacture of cordierite. |
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