3M™ Heat Shrink Thin-Wall Flexible Polyolefin Tubing offers an excellent balance of electrical, physical and chemical properties for a wide variety of industrial and military applications. Rated for 135°C continuous operation, it is split resistant,mechanically tough, easily marked and resists cold flow.3M Heat Shrink Thin-Wall Flexible Polyolefin Tubing is rated for continuous operation at -55C (-67F) to 135C (275F), and is designed to withstand elevated temperatures to 300C (572F) for short periods. Minimum shrink temperature for all 3M FP-301 tubing is 100C(212F).