... please find details as below, DescriptionCeramic Foundry sand is made from fine bauxite, by re-fused and blown to ... iron and steel foundries, Lost-foam, Precoated sand;, Sodium silicon sand , Resin sand, Precision casting etc. Advantages:Spherical grain, ... , low density, neutral materials Application:Waterglass bonded sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper ...