Difference Between Silica Sol Precision Casting and Water Glass Casting

　　Silicon Sol precision casting and water glass casting are the new casting technology. Which belongs to the lost wax casting precision casting. The difference between the two lies in the shell making process when used as binder. Water glass wax, soft wax, but silica sol is very hard, the surface quality of shell is different . The casting surface of silicon sol casting out is better, higher dimensional accuracy, but also cost more than water glass casting is high.