... a kind of nonpolar , Saturation and no cracks rubber. Our EPDM insulation provides many advantages over most rigid insulations for cooling ... stability93±°C7d%≤6Crack resistance goodFormaldehyde ExclusiveAmmonium nitrite ExclusivePolyethylene Exclusivegdflex insulation sheets available length:2m,5m,10,15mthickness:6mm,10mm,13mm, ... ,50mmwidth:1m,1.2m 10mm and 50mm thickness EPDM rubber insulation sheets