Flexible heat shrink thin-wall tubing. FP-301 tubing is split resistant, mechanically tough, easily marked and resists cold flow. It has 2:1 shrink ratio. When freely recovered, the tubing will shrink to 50% of its as-supplied internal diameter. The recovered wall thickness is proportional to the degree of recovery. 2400 PSI tensile strength. 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 bundling, component packaging and fire-resistant covering. Heat shrink tubing FP-301 offers an outstanding balance of electrical, physical and chemical properties for a wide variety of industrial and military applications. Minimum shrink temperature 100°C. Operating temperature -55 to 135°C.