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1.5:1 Heat Shrink Dual Wall Tubing

Model: CB- DWT (2000)

Material
Exterior layer: cross-linked modified semi-rigid polyolefin resin
Inner layer: hot-melt adhesive

Shrink ratio: 2:1, 3:1

Applications
1.5:1 heat shrink dual wall tubing is a friction resistant dual wall heat shrink tubing that is designed for automotive thermal and heat shield sleeving to protect automotive fuel pipes and brake pipes. The dual wall heat shrink tubing also features an excellent resistance to diesel and chemical corrosion, thus protecting the tubes against mechanical damage and moisture corrosion. Each size of this tubing is matched with a specific metal tubing pattern. It will quickly shrink when the temperature is higher than 115℃, and can be bent and formed when installed.

Size
Size Standard (mm) Inside diameter as supplied (mm) Wall thickness after recovery (mm)
CB-DWT (2000) -5 3.5 5 1
CB-DWT (2000) -6 4.76 6 1
CB-DWT (2000) -8 6.35 8 1
CB-DWT (2000)-10 8 10 1
CB-DWT (2000)-15 10 15 1
Specifications
Item Test method Standard Specifications
Longitudinal shrinkage 0-10% -2%
Eccentricity ASTM D2671 20% 10%
Tensile strength ASTM D2671 ≥12MPa 14MPa
Elongation at break ASTM D2671 400% 460%
Aging in circulating-air oven 158.0℃±1.0℃, 168hrs - -
Tensile strength after aging ASTM D2671 ≥12MPa 13MPa
Elongation at break after aging ASTM D2671 270% 410%
Deformation resistance ASTM D746 ≥50% 82%
Impact strength ASTM D746 -35℃, no cracking No cracking
Drop impact resistance ASTM D746 No cracking No cracking
Cold Resistance ASTM D746 No cracking No cracking
-35℃, 1h
Stress cracking resistance ASTM D1693 No cracking No cracking
50℃, 24hrs
Fluid resistance ASTM D2671/25℃/72hrs Sulphur acid(1.28 S.G.) No cracking
Sodium hydroxide(0.1N) No cracking
Brake oil No cracking
Unleaded petrol No cracking

Dual Wall Heat Shrink Tubing
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