ER Emergency Repair Tape was originally designed for the US Military, and is now used in multiple applications including plumbing, electrical, automotive, marine, and industrial use. ER Tape is a self-fusing tape made from silicone rubber that requires no sticky adhesives and creates a permanent water-tight, air-tight, high-pressure seal. Clear 1" wide x 12' long at 0.02" thickness Impervious to most fuels, oils, acids, solvents, salt water, and UV rays Withstands extreme temperatures from -40°C to 200 °C Sticks to itself without adhesives - can even be applied underwater Tensile strength of 700 psi Insulates up to 8,000 volts per layer Proudly made in the USA