The Everwell foam tape is made of high-density vinyl for the highest level of quality and reliability. Prevents pipe sweat and holds heat loss on piping below 180°F / 80° C. Easily cut and installed over pipes and fittings. The Everwell foam tape specifications include: temperature range: -40°F to 180°F / -40°C to 80°C, thermal conductivity: .27 BTU/Hr. (sq. ft.) — °F/Inch, water absorption: 1.1%, weather, oxidation, and fungus resistance, density: 7 lbs./cu. ft. (112 Kg/M³), and tensile: 25 PSI.