Semi-Rigid Heat Shrinkable Dual-Wall Tubing CB-DWT (4000)

Material:
Outer: cross-linked modified semi-rigid polyolefin resin
Inner layer: hot melt adhesive
Shrink ratio: 4:1

Features:

  • Higher shrink ratio, for the quilt was larger diameter coverage;
  • Transparent;
  • Semi-rigid polyolefin material, higher mechanical properties and wear resistance,perform stress harness connector and terminal solutions at an excellent abrasion resistance and protection;
  • Thicker layer of hot-melt adhesive, having excellent sealing performance,effectively resist fluid and moisture intrusion;
  • Excellent oil resistance, particularly suitable for automotive interior environments; 
  • Operating temperature: -40 ℃ ~ + 130 ℃, applicable to a wider temperature range;
  • Start shrink temperature: 110 ℃, full recovery temperature: 135 ℃.

Applications: This product is designed for automotive wire harness and piping requirements and specific design, it can be widely used with visual requirements of a variety of automotive wiring harness insulation seals, and other lines and terminals at the resumed indirect local stress relief and abrasion performance protection.

 

Introduction

Item
Test method
Indicator
Values
Longitudinal length change rate
ASTM D2671
0-10%
5%
Tensile strength
ASTM D2671
≥10.3MPa
18.87MPa
Elongation at break
ASTM D2671
≥250%
330%
Thermal aging
175℃±2℃,168h
Without dripping, flowing or crack
Qualified
Water absorption
ASTM D570
≤1.0%
0.5%
Volume resistivity
ASTM D2671
≥1×1012Ω•㎝
9.0×1014Ω•㎝

 

Specification

Item Test Method Specifications Test Value
Operation Temperature Range ASTM D 2671 40ºC to 130ºC  
Shrink Temperature Company standard 110 ºC –135 ºC for jacket  
Tensile Strength ASTM D 2671 ≥10.3 MPa 18.87 MPa
Longitudinal Change ASTM D 2671 0 to -10 % 5%
Elongation at Break ASTM D 2671 ≥250% 330%
Aging at 168h,175℃±2℃ ASTM D 3032 No cracking Pass
Water Absorption ASTM D 570 ≤1.0 % 0.5%
Volume Resistance ASTM D 2671 ≥1.0 x 1012 (Ω.cm) 9.0 x 1014 (Ω.cm)

 

Size(mm)

Type As supplied After recovery
Min ID(mm) Max ID(mm) Adhesive wall (mm) Total wall(mm)
CB- 4000-1 5.72 1.27 0.56 1.20
CB- 4000-2 7.44 1.65 0.76 1.52
CB- 4000-3 10.85 2.41 1.02 1.91
CB- 4000 -4 17.78 4.45 1.37 2.41

frequently asked questions

All You Need to Know About Our Products and Solutions

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Cold shrink tubing is a type of tubing that expands when removed from its packaging and contracts to form a tight, secure seal around cables or connectors without the need for heat. It offers a quicker and safer installation process compared to traditional heat shrink tubing, which requires a heat source. Cold shrink tubing is ideal for high-voltage cable applications and is widely used in outdoor environments, such as in power cable terminations and splices, due to its ease of installation and reliable sealing properties.

Heat shrink tubing shrinks when heated, forming a tight, protective layer over wires and components. Non-shrink tubing, such as PVC and PTFE, does not shrink but offers similar protection against mechanical damage and environmental factors. Non-shrink tubing is often used in applications where no shrinkage is required, providing insulation and protection for cables, wires, and components in a variety of industries, including electrical, automotive, and industrial sectors.

Splice protection sleeves are designed to protect cable splices from environmental damage and mechanical stress. These sleeves provide a durable, insulated covering for the cable joint, preventing moisture, dust, and physical wear from affecting the splice. Splice protection is essential in industries like telecommunications, electrical power distribution, and automotive, where reliable cable connections are necessary to maintain system integrity and performance.

In the power cable industry, heat shrink tubing is critical for protecting high-voltage cables and ensuring safe terminations. It provides excellent insulation against electrical faults, moisture, and extreme temperatures. Dual wall and heavy-duty heat shrink tubing are often used to seal power cable joints and terminations, offering both mechanical strength and environmental protection. This ensures the integrity of the power supply system, reducing the risk of downtime and system failure.

Heat shrink tubing in general electronics provides insulation and protection for wires and cables, preventing short circuits, moisture damage, and abrasion. It is commonly used in the assembly of circuit boards, power supplies, and consumer electronics, offering a cost-effective solution for cable management. The tubing's ability to shrink tightly around components ensures a secure fit, providing longevity and reducing the risk of electrical failures due to external environmental factors.

In the automotive industry, heat shrink tubing is primarily used for electrical insulation, protecting wiring and cables from moisture, dirt, and mechanical wear. These tubes are designed to withstand high temperatures and harsh environments, ensuring a secure and long-lasting connection in vehicles. Automotive applications often require heat shrink tubing that offers flame retardancy and resistance to chemicals, making them an essential component for vehicle wiring, battery cables, and connectors.

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