Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm
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Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mmClear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm

Clear Dual-Wall Heat Shrink Tubing 4:1 Ratio with Adhesive Glue | 4mm–40mm

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Beschreibung

 

Clear Dual-Wall Heat Shrink Tubing with 4:1 Ratio — Seal, Protect & Insulate in One Step

Exposed wire splices, corroded connectors, and unprotected cable ends are a constant headache for electricians, marine technicians, automotive enthusiasts, and serious DIYers. One failed seal in a wet environment can mean a short circuit, a dead trailer harness, or a costly repair. This clear dual-wall heat shrink tubing with 4:1 shrink ratio and built-in adhesive glue liner solves that problem with a single, reliable sleeve.

Each piece is a dual-wall construction: an outer polyolefin sleeve that shrinks to 1/4 of its original diameter, and an inner thermoplastic adhesive layer that melts and flows to form a watertight bond around your cable. Available in nine diameters — φ4mm (≈5/32"), φ6mm (≈1/4"), φ8mm (≈5/16"), φ12mm (≈15/32"), φ16mm (≈5/8"), φ20mm (≈25/32"), φ24mm (≈15/16"), φ32mm (≈1-1/4"), and φ40mm (≈1-9/16") — and in 1M (≈3.3 ft), 5M (≈16.4 ft), and 10M (≈32.8 ft) lengths to match your project scale.

Typical use cases include waterproofing marine wire splices and battery terminals, sealing automotive and trailer wiring harnesses against road moisture and vibration, protecting outdoor solar panel cable connections, and adding strain relief to industrial cable assemblies. The clear wall lets you inspect the adhesive flow and wire position without cutting the sleeve — a practical advantage on any job site.

🔌 Compatibility: Fits standard round cables, wires, and connectors within the listed pre-shrink inner diameter range. Confirm your cable's outer diameter before ordering — the supplied (open) diameter must exceed your cable OD. Works with heat guns; open flame not recommended.

✅ Key Features of These Clear Dual-Wall Adhesive Heat Shrink Tubes

  • 💧Waterproof Adhesive Liner — The inner glue layer melts during heating and flows around the cable jacket, creating a moisture-resistant seal ideal for marine wiring and outdoor electrical connections.
  • 🔍Clear Wall for Visual Inspection — Transparent outer sleeve lets you confirm wire seating and adhesive coverage after shrinking, without cutting the tubing open — useful for quality checks on critical connections.
  • 📐4:1 Shrink Ratio — Recovers to approximately 25% of the supplied diameter, accommodating a wider range of cable sizes per piece compared to standard 2:1 tubing — fewer SKUs needed on the job.
  • 🌡️Dual-Wall Polyolefin Construction — Outer layer provides electrical insulation and abrasion resistance; inner adhesive layer bonds to the cable jacket for corrosion protection on automotive and industrial wiring repairs.
  • 📏Wide Size Range — φ4mm to φ40mm — Nine diameter options cover everything from thin signal wires to large battery cables and conduit, available in 1M, 5M, and 10M lengths to reduce waste on larger runs.
  • ⚡Strain Relief & Vibration Resistance — The bonded adhesive layer stiffens the transition zone at splices and connectors, reducing flex fatigue and chafing in high-vibration environments like engine bays and trailer frames.

📐 Technical Specifications — Dual-Wall Adhesive Heat Shrink Tubing

Type Dual-Wall Heat Shrink Tubing with Adhesive Glue Liner
Wall Construction Outer: Polyolefin; Inner: Thermoplastic Adhesive
Color Clear (transparent)
Shrink Ratio 4:1 (recovers to ~25% of supplied inner diameter)
Available Diameters (pre-shrink) φ4mm (≈5/32"), φ6mm (≈1/4"), φ8mm (≈5/16"), φ12mm (≈15/32"), φ16mm (≈5/8"), φ20mm (≈25/32"), φ24mm (≈15/16"), φ32mm (≈1-1/4"), φ40mm (≈1-9/16")
Available Lengths 1M (≈3.3 ft), 5M (≈16.4 ft), 10M (≈32.8 ft)
Activation Temperature Typically 70–90°C (158–194°F) onset; full recovery at ~120–135°C (248–275°F)
Recommended Tool Heat gun (medium-high setting); open flame not recommended
Typical Applications Marine wiring, automotive harnesses, outdoor solar cables, industrial cable assemblies
Adhesive Seal Watertight when properly applied; see variant options for diameter-specific recovered ID
Voltage Rating See variant options / Contact us to confirm for your application
⚠️ Sizing note: The diameter listed is the pre-shrink inner diameter. Your cable's outer diameter must be smaller than this value for the tubing to slide on. After heating, the tubing will recover to approximately 1/4 of the listed size. If you are unsure, size up one step or contact us to confirm.

❓ Frequently Asked Questions

How do I choose the right diameter for my wire or cable?

Measure the outer diameter of your cable or connector before shrinking. The tubing's supplied (pre-shrink) inner diameter should be at least 1.1× the cable diameter to allow easy insertion. With a 4:1 shrink ratio, the final recovered diameter will be approximately 25% of the supplied size — for example, φ8mm tubing typically recovers to about 2mm. When in doubt, size up one step.

What temperature is needed to shrink this tubing?

Dual-wall adhesive heat shrink tubing generally activates at around 70–90°C (158–194°F) and fully recovers at approximately 120–135°C (248–275°F). A heat gun set to medium-high is typically sufficient. Avoid open flames, which can scorch the tubing or cause uneven shrinkage.

Is this tubing waterproof and suitable for outdoor or marine use?

Yes. The inner adhesive glue layer melts and flows during heating, creating a watertight seal around the cable. This makes it well-suited for marine wiring, outdoor electrical connections, and any application where moisture ingress is a concern.

What is the difference between single-wall and dual-wall heat shrink tubing?

Single-wall tubing provides insulation and strain relief but no moisture seal. Dual-wall tubing adds an inner layer of thermoplastic adhesive that bonds to the cable jacket when heated, providing a fully sealed, corrosion-resistant connection — essential for harsh environments like marine, automotive underhood, and outdoor installations.

Can I use this tubing in automotive or engine-bay applications?

Generally yes. Dual-wall adhesive heat shrink tubing is commonly used in automotive wiring repairs, trailer harnesses, and underhood connections. The adhesive liner helps resist vibration-induced chafing and moisture. Verify the operating temperature range against your specific application before use.

Why choose clear tubing over black or colored heat shrink?

Clear tubing lets you visually inspect the connection after installation — you can confirm the wire is properly seated and the adhesive has flowed evenly without cutting the sleeve open. It also works well for color-coded wiring where you want to preserve wire identification after the repair.

How much length should I allow when cutting pieces?

In most cases, cut the tubing 10–15mm (≈1/2") longer than the area you need to cover on each end. This overlap ensures the adhesive seals fully over the cable jacket rather than stopping at the edge of the splice or connector.

🛒 Select your diameter and length above, then add to cart — ships from our US warehouse.

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