2M 4:1 Heat Shrink Tubing Adhesive Waterproof Glue Insulated Dual Wall Black Heat Shrinkable Tube 4/6/8/12/16/18/20/24 MM

Azabooti offers heat shrink tubing with a 4 to 1 shrink ratio for tight, moisture-proof seals. This adhesive lined dual wall tubing protects wires and components in various environments.

Protective insulation that shrinks to fit around irregular shapes, delivering a tight seal and durable protection.

You get a 2-meter package of heat shrink tubing with a 4:1 shrink ratio and adhesive-lined dual-wall construction. This means when you apply heat, the tubing contracts to one quarter of its original diameter and fuses the connected ends with a hot-melt adhesive, providing a secure, insulated seal that guards against moisture and corrosion. The outer material is a flame-retardant polyolefin, designed for easy handling and reliable performance across industrial maintenance, marine, automotive, and electronics applications.

Key benefits at a glance:

• 4:1 shrink ratio for versatile coverage on irregular shapes
• Adhesive-lined, dual-wall construction for a robust seal
• Inner hot-melt adhesive seals ends after shrinking
• Outer material provides flame retardance and ease of use
• Polyolefin tubing that’s widely compatible with wire, joints, and components

What you’ll use it for

• Contraction protection for wire bundles, connectors, and solder joints
• Electrical insulation and moisture barrier for marine, automotive, and DIY projects
• Utilizing the 4:1 shrink ratio to fit on oddly shaped or multi-tube assemblies

Product features in detail

• Shrink ratio: 4:1 – reduces to 1/4 of original diameter when heated
• Adhesive-lined interior for seal after shrinking
• Dual-wall construction combining a heat-shrink layer with a hot-melt adhesive
• Material: polyolefin, offering flame retardant properties and durability
• Diameter options include 4, 6, 8, 12, 16, 18, 20, 24 mm (corresponding to needs across projects)
• Length: 2 meters per piece

How to use

• Cut to the needed length
• Center the tubing over the area to be protected
• Use a heat gun to evenly apply heat until the tubing shrinks to fit
• Allow the hot-melt adhesive to seal the ends for a moisture-resistant seal

Care and compatibility

• Best used with a heat gun for controlled shrinking and an even finish
• Suitable for electrical wiring, harness protection, and general insulation tasks
• Compatible with common electrical joints and components that require a tight, sealed cover

Features

• Shrinks to 1/4 diameter for versatile fit
• Adhesive lined dual wall for robust seal
• Moisture and corrosion protection
• Flame retardant polyolefin outer material
• Easy to handle, compatible with wires and joints
• Waterproof seal for marine electronics use
• Automotive and DIY electronics compatible

Specifications

• Materials: polyolefin outer tubing, adhesive lined interior with hot melt, flame retardant properties

Frequently Asked Questions

What surfaces and materials does it work on?

The tubing works on wires, joints, and electronics with standard polyolefin compatibility. It forms a tight seal around irregular shapes when heated.

How does the adhesive liner improve waterproofing?

The hot-melt adhesive fuses ends after shrinking, creating a moisture barrier that seals out water and reduces corrosion risk.

Is free shipping available for this product?

Azabooti offers shipping options including free shipping on eligible orders. Check the cart for current promotions and availability.