... -25 shore A 3.Good sealing and pr construction expansion joint rubber seal strip1.The material can EPDM,NBR, ... Silicone,EPDM molded parts.2.Function:Rubber seal could stop air, water and dust enter the machine system, which could ... and water resistanced.Anti-aging, anti-radiation, good flexibility, good elasticityUsageSteamboat,yacht, motorboat ,train,subway,car construction expansion joint rubber ...