Talc

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Used in a body flux in conjunction with feldspar to reduce thermal expansion and increase thermal shock resistance. It can also be use as a secondary flux in glazes giving an opaqu e semi-matt / vellum finish. Analysis 32.4% MgO 46.3% SiO2 9.5% Al2O3 Please read the safety information prior to purchase and use: Safety Data Sheet (pdf) Show more