Insulation Material Chemical Suppliers. Expert at PFSI, a Division of Demilec Inc., are specialists in all aspects of polyurethane foam products. Canadian made Polarfoam and Heatlok are your best choices for residential and commercial applications, and is spray applied exclusively by certified applicators. This energy efficient CCMC insulating material with the highest R Value rating is the perfect solution to building insulating design concerns and is ideal for new or retrofit construction. more... See more text