How do I decide which MoldTech to use since my clay is a bentonite blend?
Typically, SM-42 is used for green sand systems using predominately calcium bentonite and SM-88 is used for green sand systems using predominately sodium bentonite. MoldTech works as effectively in green sand systems using blended bentonite clay as it does in green sand systems using only one bentonite clay. Consult with your MoldTech representative to confirm which formulation is best for your specific application.