3M Tubing & Molded Parts are orange and red heavy-duty heat shrink tubing made of polyolefin material. With a shrink ratio of 1.5:1, it has a maximum operating temperature of 110 ℃ (230 ℉) and is suitable for operating temperatures ranging from -55 °C to 110 °C (-67 °F to 230 °F). It has an overall length of 50 ft (15.24 m) and an inner diameter before shrink of 12.858 in (326.6 mm) and after shrink of 7.571 in (192.3 mm). It is available in various sizes, including round, rectangular, and square, and has UL approval for voltage options of 5 kV, 8 kV, 15 kV, and 25 kV. The tubing does not contain halogens, is not approved for underwater installation, nor does it have inner glue. The recovered wall thickness is 0.117 in, the expanded wall thickness is 0.046 in, and the maximum recovered tubing inner diameter is 2.33 in. Suitable for construction bus applications. - 7000006051