leak seal tape 1. Cold resistant. 2. Chemical proof. 3. OEM/ ... mechanical rubber seal, auto rubber seal, electrical rubber seal, household rubber seal, medical rubber seal, etc.Description of Good Elasticity NR Leak Seal Tape:1. ... Materials: NR, also can be NR, HNBR, Buna, FVMQ, MVQ, ACM, FLS, CR, SBR, SI, BR, IR, EPDM, IIR, butyl ... sincerely. Best Regards! Good Elasticity NR Leak Seal Tape