A set of black dual wall heat shrink tubes in various sizes with glue lining

4:1 Dual Wall Heat Shrink Tubing with Glue (1 Meter)

4mm-1meter
$8.99
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A set of black dual wall heat shrink tubes in various sizes with glue lining

4:1 Dual Wall Heat Shrink Tubing with Glue (1 Meter)

$8.99
Inside Diameter

This 1-meter dual wall heat shrink tubing features a 4:1 shrinkage ratio and internal hot-melt adhesive to provide waterproof, insulated protection for wires and cable connections. It is designed for home appliance maintenance, wire branch protection, and equipment where a sealed, corrosion-resistant finish is required.

Key features

  • 4:1 High Shrinkage Ratio – Adapts to irregular shapes and provides a tight, secure fit with a 4:1 shrinkage capability.
  • Dual Wall Design – Combines an outer polyolefin layer with an inner hot-melt adhesive to seal out moisture and prevent leaks.
  • Flame Retardant – Meets VW-1 standards for fire resistance to ensure safe use in electrical applications.
  • Wide Temperature Range – Operates effectively in environments from -45°C to 125°C, with full shrinkage achieved at 125°C.
  • Voltage Rating – Rated for up to 1000V, providing robust electrical insulation.

Specifications

Material Polyolefin (PE)
Available Diameters 4mm, 6mm, 8mm, 12mm, 16mm, 18mm, 20mm, 24mm, 32mm, 36mm, 40mm, 52mm, 72mm
Shrinkage Ratio 4:1
Color Black
Shrinkage Temperature 80°C (start) to 125°C (complete)
Usage Temperature -45°C to 125°C
Rated Voltage 1000V
Flame Retardancy VW-1

Ideal for

This tubing is ideal for electricians, DIY home repair, and marine maintenance where cables require a waterproof and insulated seal against corrosion and leakage.

FAQ

How do I calculate the diameter I need?

Please note that the tubing width differs from the diameter because it is a circle. To find the correct diameter for a specific flat width, divide your required width by 1.57.

Is this tubing waterproof?

Yes, the internal hot-melt adhesive layer creates a waterproof seal upon shrinking.

What is the shrinkage temperature?

The tube begins shrinking at 80°C and reaches full shrinkage at 125°C.

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