3M™ FP-301 Heat Shrink Tubing offers an outstanding balance of electrical, physical and chemical properties for a wide variety of industrial and military applications. This tubing comes in 50 ft spool and a quantity of 150 ft per case. 3M™ FP-301 is rated for 275(deg)F(135(deg)C) continuous operation. FP-301 tubing is typically used as a shrink-fit electrical insulation over cable splices and terminations. It is also used for lightweight wire harness covering, wire marking, wire bund