4:1 Irradiated Polyolefin Heat Shrinkable Tubing

4:1 Irradiated Polyolefin Heat Shrinkable Tubing for Versatile Cable Protection

Many electronic assemblies comprise large sized connectors. Due to constant strain placed on the assembly by the application, the connectors and wires can deteriorate quicker than expected. Heat shrinkable tubing can help provide the requisite amount of protection and support to wires and connectors. Flex Wires provides the solution with 4:1 irradiated polyolefin heat shrinkable tubing.

Types of Polyolefin Tubing

Irradiated polyolefin heat shrinkable tubing is ideal for applications that consist of multiple irregularly shaped wires and connectors. As a heat shrink product, The 4:1 tubing is designed to provide tight fittings, and is extremely versatile. Flex Wires offers this tubing in two types:

  • FT4A – 4:1 dual wall adhesive lined polyolefin heat shrink tubing
  • FT4 – 4:1 normal wall polyolefin heat shrink tubing

Features of Polyolefin Tubing

The tubing consists of the following features:

  • The tubing is puncture resistant
  • It provides relief from wire strain
  • The tubing remains flexible even after installation
  • It shrinks down to 28% of its original size
  • The tubing is often provided as transparent, allowing the user to conduct visual inspection of the wires


Technical Specifications

Flex Wires offers 4:1 heat shrinkable tubing in the following specifications:

  • Voltage Rating: 600V
  • Shrink Temperature Range: From 70 oC to 120 oC
  • Operating Temperature:
    • FT4A: -45 to 125 °C
    • FT4: -55 to 135 °C
  • Standard Adherence:
    • UL
    • CSA
    • RoHS
    • MIL-23053/5 Class 1 & 3

Flex Wires offers all tubing in black color. However, other colors can be provided on request.


Industrial Applications

Our 4:1 polyolefin tubing can provide a variety of benefits in the following industrial applications:

  • Cable coverage
  • Connector strain relief
  • Pin connector coverage
  • Coverage of irregularly shape cables and wires
  • General wire and cable protection


Flex Wires’ versatile 4:1 irradiated polyolefin heat shrinkable tubing provides a variety of solutions in terms of cable protection. They help the user maintain the efficacy of the electrical equipment. Please contact us if you would like to know more about our products.



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