Sheet Insulation 36in x 48in, Priced per Sheet, 288 sq. ft. Closed Cell Flexible Elastomeric Thermal Insulation, Black, Made with Microban Antimicrobial, Mold and Mildew Resistant, inIAQin Insulationin, Dust Free, Fiber Free, Formaldehyde-Free, Prevents Condensation, Manufactured without the use of CFC’s, HCFC’s or HFC’s, Temperature Range -279°F to +220°F (180°F with adhesives), 25/50 Rated