Profile: South Valley Specialties offers marine, industrial and commercial elastomeric molding services. Our molded products include roller, seals, gaskets, diaphragm and rubber. We deal with materials such as EPDM, nitrile, neoprene, viton, silicone, urethane and conductive. We deliver Por-A-Mold ®, which is a two part mold making system made of liquid urethane rubber, that cures at room temperature.