sponge seal 1. Water proof. 2. Steam proof seal. 3. Small ... seal, medical rubber seal, etc.Description of Good Elasticity EPDM Sponge Seal:1. Materials: EPDM, also can be NR, HNBR, Buna, FVMQ, MVQ ... , ACM, FLS, CR, SBR, SI, NBR, BR, IR, EPDM, IIR, butyl, PU, E/A, ECO, CSM, VITON, FKM, FPM ... welcome to visiting our company sincerely. Best Regards! Good Elasticity EPDM Sponge Seal