construction expansion joint rubber seal strip 1.Material:EPDM foam 2.Hardness ... Good sealing and pr construction expansion joint rubber seal strip1.The material can EPDM,NBR,SILICONE ... 8) Silicone,EPDM molded parts.2.Function:Rubber seal could stop air, water and dust enter the ... flexibility, good elasticityUsageSteamboat,yacht, motorboat ,train,subway,car construction expansion joint rubber seal strip