Dual Wall Adhesive Heat Shrink Tubing – Professional Cable Protection

Keep your wiring neat, secure, and fully protected with this Dual Wall Heat Shrink Tubing with Hot Melt Glue Lining. Engineered from high-quality polyethylene (PE) with an inner adhesive layer, these tubes shrink at a 4:1 ratio, creating a tight, moisture-resistant, and mechanically strong seal around cables, wires, connectors, and splices. Available in six popular diameters — 4mm, 6mm, 8mm, 12mm, 16mm, and 20mm — there's an ideal size for every project.

Made in Mainland China.

Why Choose Dual Wall Heat Shrink Tubing?

4:1 Shrink Ratio: Exceptional coverage — ideal for irregular shapes, connectors, and bundle terminations.
Hot Melt Adhesive Inner Layer: The internal glue flows and seals as it shrinks, creating a watertight, corrosion-resistant barrier against moisture, dust, and chemicals.
Polyethylene (PE) Construction: Flexible, durable, and resistant to abrasion, UV, and common solvents.
Wide Size Range: 4mm, 6mm, 8mm, 12mm, 16mm, and 20mm inner diameters to handle a broad variety of cables and wire gauges.
Electrical Insulation: Provides a reliable dielectric barrier to safeguard connections from short circuits and signal interference.
Versatile Applications: Suitable for automotive wiring harnesses, marine cables, electrical panels, DIY electronics, and industrial installations.

Key Specifications

Material: Polyethylene (PE) with hot-melt adhesive inner lining
Shrink Ratio: 4:1
Available Diameters: 4mm / 6mm / 8mm / 12mm / 16mm / 20mm
Type: Dual Wall, Heat Shrinkable
Application Method: Heat gun or similar controlled heat source
Country of Origin: Mainland China

Ideal For

Automotive and motorcycle wiring harnesses
Marine and outdoor electrical connections
Battery terminal protection
DIY electronics and home wiring projects
Industrial cable management and bundling
Connector and splice sealing

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Safety & Standards Reference

For best practices in electrical wiring safety and insulation standards, refer to the U.S. Consumer Product Safety Commission – Electrical Safety Resources.

Frequently Asked Questions

Q: What is the shrink ratio of this dual wall heat shrink tubing?

A: This tubing features a 4:1 shrink ratio, meaning it can shrink down to one-quarter of its original inner diameter. This makes it excellent for covering larger connectors, irregular shapes, and bundled wire terminations securely.

Q: What tool do I need to apply dual wall heat shrink tubing with glue?

A: A standard heat gun is recommended for best results. Apply even, controlled heat around the tube — the outer PE layer will shrink tightly while the inner adhesive lining melts and flows to create a sealed, moisture-proof bond around your cable or connector.

Q: Which diameter should I choose for my cable?

A: Select a tubing inner diameter that is slightly larger than the widest part of your cable or connector before shrinking. Options include 4mm, 6mm, 8mm, 12mm, 16mm, and 20mm — suitable for everything from thin signal wires to thick power cables and battery terminals.

Q: Is this heat shrink tubing waterproof?

A: Yes. The hot-melt adhesive inner layer melts during the shrinking process and forms a watertight seal around the cable, making it suitable for outdoor, marine, and automotive environments where moisture ingress is a concern.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

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