
Ceramic Foundry Sand for Vacuum Casting
Ceramic Foundry Sand for Vacuum Casting refers to a specialized, high-performance material used to create the rigid mold shells that house the flexible silicone molds in the vacuum casting process. Chemical Analysis[%] Al2O3 70-73 SiO2 8-20 Fe2O3 ≤3 TiO2 ≤3.5 CaO ≤0.45 MgO ≤0.35 K2O ≤0.33 Na2O ≤0.08 Physical Properties Grain shape Spherical Ball Roundness 90%

