Custom Shape Molded Rubber Parts, Precision Molded Rubber Seals & Pads Engineered for valve, pump and plumbing systems, our custom shape molded rubber parts deliver reliable sealing performance with weather and ozone resistance. Precision molded rubber seals and pads are produced to your drawings or samples, with material options matched to each application. Silicone Rubber Material Description (Q, MQ, VMQ, PVMQ) Material SIL (Silicone Rubber) Advantages Excellent ozone, UV