Heat shrink wrap heat shrinkable wrap product structure divided into three layers (referred 3PE): the inner layer is coated on the two-component solvent-free epoxy primer steel surface, the middle layer of hot melt adhesive for high performance corrosion, most the outer layer of the substrate is modified by a special high-density polyethylene. When using a two-tier structure of heat shrinkable band (called 2PE), then do not epoxy primer. For a variety of pipe corrosion coating: steel bottom, layer polyethylene (2PE), three-layer polyethylene (3PE), three polypropylene (3PP), epoxy powder (FBE), insulation jackets, coal tar enamels, oil and asphalt. The product has excellent hot melt adhesive properties when heated above melting steel body with a solid combination of coating to form a good seal system corrosion, high peel strength, good corrosion resistance, contraction speed, tightness, good waterproof performance , acid, chemical resistance and good mechanical protection performance, service life with the same pipeline, easy on-site construction operation, low labor intensity. Heat Shrink wrap is widely used in underground, underwater, open-air, saline, desert environment of oil and gas pipeline construction and municipal engineering. Product thickness of 2.0-3.0mm, can be adjusted according to user requirements. Common Width: 50mm-300mm, long rolls of packaging products per roll 10m-30m. Has good flexibility, ease of winding, can be used for oil and gas pipelines, water supply and drainage lines, Mending, elbow, protect girth welded joints and other irregular morphology.