Stretch & seal, 1" x 10', 20 mil, black, self fusing silicone sealing tape, conforms to irregular shapes, insulates to 800v, ideal for use in any weather condition, waterproof, resists salt/oil/chemicals, protects against corrosion, withstands temperatures from 65 to 500 degrees Fahrenheit, uv resistant, easy to remove & leaves no residue, meets or exceeds ul510.