3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes
3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes
3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes
3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes
3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes
3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes
Roll over image to zoom in Click on image to zoom
3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes

3:1 White Adhesive Heat Shrink Tubing — Glue Lined, Waterproof, Multiple Sizes

HomeDIYer
No reviews

By HomeDIYer®

Price:
$6.96 USD
Stock:
In stock (500 units), ready to be shipped

Payment & Security

Ach Direct Debit Amazon American Express Apple Pay Bancontact Diners Club Discover Google Pay iDEAL Wero Mastercard PayPal Shop Pay USDC Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Quantity Discount Promotion
🎯 BULK DISCOUNT: Buy More, Save More!
Buy 2 Items
5% OFF
Buy 4 Items
10% OFF
Buy 6 Items
15% OFF
✅ Auto-discount • 🔄 Mix & match
Expert

DIY Expert Support

Get fitment advice & recommendations

Mon-Fri, 8:30AM-8PM
WhatsApp WhatsApp Email
⚡
24-Hour Fast Ship
🚚
Arrives in 3-14 days
🌍
Global Reach
↩️
30-Day Returns
🌱 1 tree planted with every purchase

Description

 

3:1 White Adhesive Heat Shrink Tubing — Waterproof Glue Lined Wire Sleeving

Exposed wire splices and unprotected connectors are one of the most common causes of electrical failures in automotive, marine, and outdoor installations. Whether you're a DIY enthusiast rewiring a trailer, a marine technician sealing bilge pump connections, or an electrician protecting outdoor junction boxes, you need a sleeving solution that holds up to moisture, vibration, and temperature swings — not just a basic tube that slides on and calls it a day.

This 3:1 white adhesive heat shrink tubing features a dual-wall construction: an outer polyolefin sleeve that shrinks to one-third its original diameter, and an inner hot-melt adhesive lining that flows and bonds to the substrate as heat is applied. Available in diameters from φ1.6mm (≈1/16") to φ39mm (≈1-1/2"), and in lengths of 1m (≈3.3 ft), 3m (≈9.8 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), and 20m (≈65.6 ft) — so you can match the exact size and quantity your project demands.

Typical applications include waterproof wire splice protection for boat wiring and RV electrical systems, heat shrink connector sealing in automotive engine bays, and glue-lined cable bundling for outdoor low-voltage lighting runs. The white finish also makes it easy to label or identify circuits after installation.

🔌 Compatibility: Fits standard wire gauges and connector bodies used in automotive, marine, RV, and general electrical applications. Select the diameter closest to twice the outer diameter of your wire or bundle. See variant options for all available sizes.

✅ Key Features of These 3:1 Adhesive Heat Shrink Tubes

  • 💧Waterproof Glue Liner — The inner hot-melt adhesive melts during shrinking to form a moisture-resistant seal, making this tubing well-suited for marine wiring, outdoor junction protection, and wet-environment cable repairs.
  • 🔥3:1 Shrink Ratio — Shrinks to approximately one-third of its original inner diameter, providing a tighter, more conforming fit over irregular shapes, tapered connectors, and multi-wire bundles compared to standard 2:1 tubing.
  • 📏Wide Size Range — Available from φ1.6mm to φ39mm in diameter, covering everything from fine instrument wiring to large-gauge power cables and connector boots — all in one product line.
  • 🎨Clean White Finish — The white color makes it easy to write circuit labels directly on the sleeve after installation, useful for panel wiring, control boxes, and any application where circuit identification matters.
  • ✂️Cut-to-Length Flexibility — Sold in 1m, 3m, 5m, 10m, and 20m lengths so you can buy exactly what your project needs — whether it's a single repair job or a full wiring harness build.
  • ⚡Dual-Wall Construction — The outer polyolefin layer provides electrical insulation and abrasion resistance, while the inner adhesive layer bonds to the wire jacket for a secure, strain-relieving grip that resists pull-out and vibration loosening.

📐 Technical Specifications — 3:1 Glue Lined Heat Shrink Tubing

Product Type Dual-Wall Adhesive Heat Shrink Tubing
Shrink Ratio 3:1
Color White
Available Diameters (Pre-Shrink) φ1.6mm, φ2.4mm, φ3.2mm, φ4mm, φ4.8mm, φ6.4mm, φ7.9mm, φ9.5mm, φ12.7mm, φ15.4mm, φ19.1mm, φ25.4mm, φ30mm, φ39mm
Available Lengths 1m (≈3.3 ft), 3m (≈9.8 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), 20m (≈65.6 ft)
Inner Lining Hot-melt adhesive (glue lined)
Outer Material Polyolefin
Activation Temperature Typically 120–150°C (248–302°F); contact us to confirm
Operating Temperature Range See variant options or contact us to confirm
Voltage Rating See variant options or contact us to confirm
Flame Retardancy See variant options or contact us to confirm
Recommended Tool Heat gun (open flame not recommended)
Typical Applications Automotive wiring, marine electrical, outdoor cable protection, wire splice sealing
⚠️ Sizing tip: The pre-shrink diameter should be approximately twice the outer diameter of the wire or bundle you're covering. When in doubt, size up — you can always apply more heat for a tighter fit, but you cannot reverse an over-shrunk tube.

❓ Frequently Asked Questions

How do I choose the right diameter for my wires?

Measure the outer diameter of the wire or bundle you need to cover, then select a tubing size whose recovered (shrunken) inner diameter is slightly smaller than that measurement. As a general rule, the pre-shrink diameter should be roughly twice the diameter of the object being covered. For example, a wire bundle measuring approximately 3mm would typically work well with the φ6.4mm size.

What shrink ratio does this tubing use?

This tubing has a 3:1 shrink ratio, meaning it shrinks to approximately one-third of its original inner diameter when heat is applied. This ratio generally provides a tighter, more secure fit compared to standard 2:1 tubing, making it well-suited for irregular or tapered surfaces.

Is this tubing suitable for outdoor or marine use?

Yes. The inner adhesive lining melts and flows during shrinking to create a waterproof seal around the substrate. This makes it generally suitable for outdoor wiring, marine electrical connections, and other moisture-exposed environments. For submersion applications, please confirm suitability with your specific use case.

What temperature is needed to shrink this tubing?

Adhesive-lined heat shrink tubing typically requires a heat source of around 120–150°C (248–302°F) to activate the shrink process and melt the glue liner. A heat gun is recommended for even, controlled application. Avoid open flames where possible, as they can cause uneven shrinking or scorching.

What connector or wire standards is this compatible with?

This tubing is not thread-specific — it is designed to fit over wires, cables, connectors, and terminals of varying diameters. It is compatible with standard wire gauges and connector bodies commonly used in automotive, marine, and general electrical applications. See variant options for available diameters.

How much length do I need for my project?

For single wire repairs or connector sealing, 1m is typically sufficient for multiple joints. For larger wiring harness projects or runs along a vehicle chassis, 3m, 5m, or 10m rolls are generally more economical. The 20m option is well-suited for workshop stock or recurring electrical work.

Can I use this on automotive wiring?

Yes, adhesive-lined heat shrink tubing is widely used in automotive wiring for splices, terminal insulation, and connector protection. The glue liner helps resist vibration loosening and moisture ingress, which are common concerns in engine bays and undercarriage wiring.

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

You may also like

Recently viewed