Chemical like ferrous sulphate, sodium gluconate, quartz sand quartz powder, natural sand .
Sodium silicate and it's byproducts.
Sodium bicarbonate, sajji khar, soapstone, calcium, bentonite, mica, fireclay, bauxite, fire bricks.
Silica, quartz, ball clay, kaolin, feldspar, wollestonite, talc, barium carbonate, zinc oxide, zircosil, soda ash, sodium silicate, optapix novalk 95.