4:1 Dual Wall Black Semi-Rigid Polyolefin Heat Shrink Tubing

4:1 Dual Wall Black Semi-Rigid Polyolefin Heat Shrink Tubing
4:1 Dual Wall Black Semi-Rigid Polyolefin Heat Shrink Tubing
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Model: CYG-DWT(RO)

Material
Exterior layer: irradiated cross-linked modified polyolefin
Inner layer: modified polyamide hot-melt adhesive

Shrink ratio: 4:1

Applications
The dual wall black semi-rigid polyolefin heat shrink tubing has an excellent sealing performance, diesel resistance and insulation performance that is compliant with RoHS standards, and used to protect a variety of automotive wire harnesses. The continuous operating temperature of this dual wall heat shrink tubing is -40℃~125℃, and the shrink temperature is 100℃~150℃.

Size
Size As supplied After recovery
ID (mm) ID (mm) Total wall (mm)
5.7 ≥5.7 ≤1.27 1.45±0.30
7.4 ≥7.4 ≤1.65 1.55±0.30
11.0 ≥11.0 ≤2.4 2.35±0.50
14.0 ≥14.0 ≤3.0 2.35±0.50
17.8 ≥18.3 ≤4.35 2.35±0.50
Specifications
Item Test methods Requirement
Operation temperature Company standard -40℃-125℃ for jacket
Shrink temperature ASTM D2671 110℃
Tensile strength ASTM D638 ≥10.4MPa
Elongation at break ASTM D638 ≥200%
Cold shock ASTM D745,-40±2℃ No cracking
Dielectric strength ASTM D2671 ≥19.7kv/mm
Volume resistance ASTM D876 ≥1×1012Ω.cm
Tensile strength after aging ASTM D638 ≥7.3MPa
Elongation at break after aging ASTM D638 ≥100%
Dielectric strength after aging ASTM D2671 ≥15.8kv/mm
Softening point of melt liner(℃) Company standard 110±5
Sealing TL82324 ≥1×108
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