Thermoplastic meltable adhesive sealant liner provides complete environmental protection and insulation. Flame retardant. Meets: UL 486D, CSA C22.2 No. 198.2, ANSI C119.1, Western Underground Guides Nos. 2.4, 2.5,MIL-DTL-23053/15, IEEE 383 Vertical Flame Test, ANSI C37.20.2, ICEA S-19-8 and NEMA insulation thickness requirements. Heat shrink tubing is rated for 1000V, 194°F (90°C) continuous use. Continuous operating temperature: -67°F to 230°F (-55°C to 110°C). Shrink temperature: 248°F (120°C). Black color.