mechanical seal Excellent chemical and physical property mechanical seal Excellent chemical and physical property, oil resistance, high temperature stability, etc. Made with all kinds of rubber.1) Material: silicone, fluoro silicone, viton (FKM), neoprene,HNBR, NBR+PVC, NBR, natural rubber, SBR,IR, IIR (BUTYL RUBBER), CIIR, CR (neoprene),EPDM are available2) Excellent chemical and physical ...