Dual wall heat shrink tube is also known as double wall heat shrink tube. Outer layer is made of high quality ,sofe co-extrusion of polyolefin ,and the inner layer manufactured of hot melt adhesive. So dual wall heat shrink tube is the two parts to composite process.


As to the dual wall heat shrink tube,here is many advantages:The outer material has the advantages of insulation anti-corrosion, wear-resistant, inner layer has low melting point, waterproofing, sealing and the advantages of high adhesion.


Double-wall heat shrinkable tube is used in waterproof, preventing leakage for connection of electronic equipment, Wires and the anticorrosion protection of the branch, the repair of wire and cable pump, and submersible pump wiring waterproofing, etc. Often application areas are: cars, trucks, ships and other industrial fields.


Here is simple description of dual wall heat shrink tube:

Shrinking Ratio: 2:1, 3:1, 4:1
Approval: UL 125℃  VW-1 600V
Meet: SAE-AMS-DTL-23053/4
Operating temperature:-45℃to +125℃
Minimum shrink temperature:80℃
Minimum fully recovery temperature:120℃
Standard color: Black
Special color: Red, Blue, White, Yellow
Clear (non-flame retardant jacket)


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