Dual Wall Heat Shrink Tubing

CB-DWT

Dual Wall Heat Shrink Tubing

Adhesive Lined Heat Shrink Tube for Electronic Applications
  • Outer jacket: Modified polyolefin
  • Inner wall: Modified hot-melt adhesive
  • Shrink Ratios: 2:1, 3:1, 4:1
  • Shrink temperature: 100°C to 120°C
  • Operating temperature: -40°C to 125°C
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Applications
  • Our tubing finds extensive use in industries such as electronics, automotive, and more, for applications including waterproofing electronic connections, sealing wire junctions, corrosion protection of metal pipelines, and preventing loosening and detachment.
Features
  • Flexible, halogen-free, and environmentally friendly
  • Ideal water and moisture resistance
  • Shrink temperature: 100°C to 120°C
  • Operating temperature: -40°C to 125°C
  • Compliant with UL224 standards (Certification No.: E180908)
Technical Data
Properties Test Method Performance
Radial shrinkage UL224 ≥50％
Longitudinal change UL224 0~10%
Tensile strength ASTMD2671 ≥10.4MPa
Ultimate elongation ASTMD2671 ≥200％
Aging in hot air oven (158℃±2℃/168h) - -
Tensile strength after aging ASTMD2671 ≥7.3MPa
Ultimate elongation after aging ASTMD2671 ≥100％
Volume resistivity ASTMD876 ≥1.0×1014 Ω·cm
Dielectric strength (2500V/60s) ASTMD2671 No breakdown
Water absorption ASTMD570 ≤.1.0%
Dimensions

Shrink Ratio: 2: 1

Size As Supplied (mm) After Recovery (mm)
Minimum Inside Diameter Wall Thickness Maximum Inside Diameter Wall Thickness Adhesive Lining Thickness
Ø1.2 1.2 0.30 0.6 0.45±0.12 0.20
Ø1.6 1.6 0.30 0.8 0.45±0.12 0.20
Ø2.4 2.4 0.35 1.2 0.55±0.12 0.30
Ø3.2 3.2 0.40 1.6 0.60±0.15 0.30
Ø4.8 4.8 0.40 2.4 0.75±0.15 0.35
Ø6.4 6.4 0.40 3.2 0.75±0.15 0.35
Ø9.5 9.5 0.40 4.8 0.80±0.20 0.35
Ø12.7 12.7 0.40 6.4 0.80±0.20 0.35
Ø19.1 19.1 0.50 9.5 0.95±0.28 0.40
Ø25.4 25.4 0.50 12.7 1.15±0.28 0.45
Ø38.1 38.1 0.65 79.0 1.25±0.41 0.45
Ø50.8 50.8 0.73 25.4 1.40±0.41 0.50

Shrink Ratio: 3: 1

Size As Supplied (mm) After Recovery (mm)
Minimum Inside Diameter Wall Thickness Maximum Inside Diameter Wall Thickness Adhesive Lining Thickness
Ø3.2 3.2 0.40 1 0.85±0.25 0.35
Ø4.7 4.7 0.40 1.5 1.05±0.25 0.45
Ø6.4 6.4 0.45 2 1.10±0.25 0.45
Ø9.5 9.5 0.60 3 1.45±0.25 0.45
Ø12.7 12.7 0.60 4 1.50±0.35 0.45
Ø19.1 19.1 0.75 6 2.00±0.45 0.65
Ø25.4 25.4 0.75 8.4 2.00±0.55 0.65
Ø30 30 0.80 10 2.20±0.55 0.75
Ø40 40 0.85 13.7 2.50±0.55 1.00

Shrink Ratio: 4: 1

Size As Supplied (mm) After Recovery (mm)
Minimum Inside Diameter Wall Thickness Maximum Inside Diameter Wall Thickness Adhesive Lining Thickness
Ø4 4 0.40 1 1.00±0.28 0.50
Ø8 8 0.40 2 1.10±0.28 0.50
Ø12 12 0.50 3 1.40±0.28 0.61
Ø16 16 0.60 4 1.78±0.28 0.76
Ø24 24 0.75 6 2.25±0.55 0.76
Ø32 32 0.80 8 2.54±0.55 1.02
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