construction expansion joint rubber seal strip 1.Material:EPDM foam 2.Hardness:10 ... .(8) Silicone,EPDM molded parts.2.Function:Rubber seal could stop air, water and dust enter the ... 4.Application:Railcars,automobile,steamboat,industrial electrical equipment,building door& window,construction machinery,construction bridge and tunnel. Etc ... ,train,subway,car construction expansion joint rubber seal strip