... foam insulation tube and sheet is composed of Ethylene-Propylene-non-conjugatedDieneRubber, It is a kind of nonpolar , Saturation and no cracks rubber ... . Our EPDM insulation provides many advantages over most rigid insulations ... insulation pipe available length:2m,5m,10,15mthickness:6mm,10mm,13mm,20mm,25mm,32mm,50mmwidth:1m,1.2m epdm closed foam insulation ...