Thin wall heat shrink tubing is constructed from durable, flame retardant black polyolefin which is resistant to both solvents and fluids making it ideal for cable insulation, repair, marking or bundling. Heat shrink not only provides superior mechanical, abrasion and moisture protection but also strengthens connections and provides a comfortable gripping surface. As a result, professional and DIY multi purpose uses include repairing cords (ranging from large appliance cords to small electronic cables that show wear at pull out), covering tool and sporting equipment handles and sealing rope for neat, unravel resistant ends. Finally, tubing capably resists common fluids and solvents. Upon heating to 120 degree Celsius (250 degree Fahrenheit) the tubing begins to shrink but will not drip, crack or flow and is self extinguishing within 30 seconds. Meets UL 224, 125 degree Celsius CSA C22.2 No3 198.1, 125 degree Celsius MIL-DTL-23053/5, Class 1 and 2, AMS 3636 and 3637 DEF STAN 59-79, issue 3 type 2A. Continuous operating temperature -55 degree Celsius (-67 degree Fahrenheit) to 135 degree Celsius (275 degree Fahrenheit). Shrink temperature 120 degree Celsius (250 degree Fahrenheit) to 250 degree Celsius (480 degree Fahrenheit). 600 Voltage/Mil Dielectric strength. - Non adhesive lined - Polyolefin shrink tubing shrinks under heat application to insulate wiring up to half its diameter - Also useful for repairing cords and covering tool handles - Makes strong rope loops and neat ends - Self-extinguishing tubing will not drip, crack or flow when heated to shrink temperatures