oil seal 1.Materials: NBR, FKM PTFE EPDM ,SBR ,SR ,CR ,Silicon, etc. 2.Various sizes. ... . Oil SealRubber Oil Seal, Rubber Seal.1. Material: NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, etc. Can choose on your requirement ... products. The material of these products are NBR, NR, EPDM, FKM, SILICON RUBBER, NYLON, PU, CR, SBR, EP, IIR etc ...