TEMCo 1" Marine Heat Shrink Tube 3:1 Adhesive Glue Lined 4 ft BLACK Diameter: 1" Color: Black, Material: Polyethylene, Shrink Ratio: 3:1 Adhesive Adheres to: Most plastics, metals, rubber, Continuous Operating Temp: -45C up to +145C Longitudinal Shrinkage (Lengthwise): Less than 8% , Insulating Voltage Capability: 600 volts 1 Year Warranty. Resistant to Salt water, Oil, Gasoline, Diesel Fuel, and more.