... thermal expansion rate 3,high refractoriness Ceramic foundry sand ,called ceramisite sand,china cerabeads and cerasand too, is ... casting material for precision casting, coated sand and self hardening sand etc.Size:10-300meshMain Chemical Composition ... sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper and Aluminium articles casting treatment. Ceramic foundry sand