ST Plastics has the capability of molding all different rubber types, including difficult to process rubbers like carboxylated nitrile. Colson Plastics has been inserted and overmolding rubber for over fifteen years. 

An advantage ST has over other rubber injection molders is the product size they are capable of producing. Products can be molded of rubber that weighs up to 25 pounds.

ST has considerable experience processing nitrile, neoprene, SBR, EPDM, and carboxylated nitrile rubbers.