... mineral salts talc family talc, the main component of the moisture content of magnesium silicate, silica and magnesium oxide, talc ... 4) Paper grade (ZZ): used for the packing of various types of paper and paperboard, wood pitch control agents.(5) Plastic ... agent.(8) Ceramic grade (TC): used for the manufacture of electrical porcelain, radio porcelain, industrial ceramics, building ceramics, daily ...