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 ... request or standard tolerance.5. Color: black, transparent, green, red, yellow, grey, purple, pink, etc. or upon your color codes.6 ... to visiting our company sincerely. Best Regards! Good Elasticity EPDM Sponge Seal