1、Shrinks quickly at low temperature, and can be heat‑shrinked by lighters and hot air guns. Has high strength and toughness, can be bent at will after heat shrinking, very practical 2、The outer layer is made of polyolefin, which has the characteristics of insulation, halogen‑free flame retardant, low temperature shrinkage, etc. 3、The inner layer is hot melt adhesive, with low melting point, good adhesion, waterproof sealing and mechanical strain buffering 4、Used in the wiring waterproof and air leakage of electronic equipment, the sealing and waterproofing of multi‑strand wiring harness (such as home wiring harness, automobile wiring harness, etc.), and wire cable branches 5、Can be used for corrosion protection of metal pipelines, repair of wires and cables, wiring waterproof of water pumps and submersible pumps, etc. 1 x Heat Shrink Tube Roll Item Type: Heat Shrink Tube RollMaterial: PolyolefinSpecification: Dia 4.8Length: Approx. 100meter / 328.1ftColour: BlackInner Diameter Before Shrinking: ≥ Approx. 4.8mm / 0.2inSize After Shrinking: Inner Diameter: ≤ Approx. 1.6mm / 0.06inTotal Wall Thickness: Approx. 1.10mm / 0.04in ± 0.15mmAdhesive Layer Wall Thickness: 0.4mm / 0.02in ± 0.08mm