... , It is a kind of nonpolar , Saturation and no cracks rubber. Our EPDM insulation provides many advantages over most rigid insulations ... , limited fire spreading Available ID:13mm,16mm,19mm,22mm,25mm,28mm,32mm......115mmAvailable Thickness:10mm,13mm,20mm,25mm,32mm,40mm,50mmlength ... pipe/sheets is available,the length upon customer's requst. rubber insulation pipe