Kingspan Insulation, LLC (formerly Dyplast Products LLC) manufactures as well as sells polyisocyanurate (PIR) mechanical insulation, insulation for architectural panels, composite foam cores for advanced composite applications.Dyplast Products is proud to manufacture ISO-C1/2.0, the only polyiso bunstock tested by FM to meet the Class 1 requirements of ASTM E84 for fire spread and smoke. ISO-C1 is the superior insulation for cryogenic (e.g. LNG) and refrigeration applications. ISO-HT is suitable for the higher temperatures of hot water and low pressure steam. Our products are tested and certified by third-party independent laboratories.