Black Rescue Tape 1" x 12'. Self-Fusing, Premium Quality Silicone. For Emergency Product For Plumbing, Automotive, Electrical & Industrial Repairs. Creates A Permanent Airtight, Watertight Seal In Seconds. Repair & Seal Leaky Hoses, Pipes, Tubing, Lines, & Fittings. Works Even Over Oily Or Dirty Surfaces. Resists 500 Degrees & Remains Flexible To - 85 Degrees. Insulates 8,000V. 950 PSI Tensile Strength. Resists Fuels, Oils, Acids Solvent, Salt Water, Road Salt & UV Rays. Meets & Significantly Exceeds Military Specifications MIL-Spec.