3M FP-301 heat shrink tubing is a flexible, polyolefin tubing designed for a wide range of industrial and military applications. It provides excellent electrical insulation, mechanical protection, and chemical resistance. The tubing's 2:1 shrink ratio allows for a tight, secure fit over various components. It is commonly used for cable splices, wire harness covering, wire marking, wire bundling, component packaging, and fire-resistant covering. Rated for continuous operation at -55°C to 135°C and short periods up to 300°C, it offers durability in demanding environments.