Repair Plumbing Pipes And Radiator Hose Leaks With Bond It F4 Emergency F4 Tape is manufactured to military and aviation standards. The new rapid fuse technology, high tensile strength, high-temperature resistance and high-performance, significantly exceeds the Mil Specifications for self-fusing silicone tape The new fusing silicone formula fuses in seconds and bonds to itself permanently. Better elasticity and better elastic memory. Easier to separate from the plastic liner. Thorough fusion without the need to clamp or tie the ends Resists pressure up to 950 PSI and insulates up to 8,000 volts. Withstands constant operating temperatures of 392F degrees (200C) and resists up to 500F degrees (260C). Resistance to oils, fuels, and many chemicals. Does not become gummy or sticky Insulate and protect wiring and connections. Waterproof connections and fittings. Replace shrink tape and shrink tubing. Wrap wires for safety and protection. Wrap tool handles, aircraft handles and knobs for a non-slip grip and emergency repairs on lines and hoses F4 Tape is lab tested and manufactured in the USA with extruded of a high-performance silicone elastomer. Available in the traditional military Red Oxide or Black color with blue guideline. Each roll is 1" wide x 36' long x .020" (20mil) thick