... barriers2. Stable thermal conductivity (K value) during service, due to its dence surface skins and closed cell characteristics3. Flexibility which ... , we have selected a high grade, environmentaly friendly PE tape to be coated in two halves across the pre-insulated pipe ... Proof, Aeroflex tube and sheet insulation have been specially compounded to meet the ASTM standards No D635, UL-94V, JIS ...