Stretch & Seal 1"x10' 20-Mil Black Self Fusing Silicone Sealing Tape. Conforms to irregular shapes and insulates to 800V. Ideal for any weather condition, it is waterproof, resists salt, oil, and chemicals, protects against corrosion, and withstands temperatures from -65 to 500 °F. UV resistant, easy to remove, and leaves no residue. Meets or exceeds UL510. Packaging: 1 Tape Roll.