2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors
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2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors

2:1 Heat Shrink Tubing – Electrical Wire Sleeving, 11mm–18mm, 7 Colors

HomeDIYer
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By HomeDIYer®

Price:
$2.03 USD
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In stock (500 units), ready to be shipped

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Description

2:1 Heat Shrink Tubing -- Reliable Insulation for Automotive, Marine and DIY Electrical Work

Exposed wire splices, corroded terminals, and bare connections are a constant headache for automotive technicians, marine riggers, and home DIYers alike. One nick in the insulation can mean a short circuit, a failed inspection, or worse. This 2:1 heat shrink tubing gives you a clean, durable sleeve that locks onto your wire with a standard heat gun -- no tape, no mess, no re-work.

Each order includes a continuous length of polyolefin heat shrink tubing in your chosen color, diameter, and length. Available in seven colors (Black, White, Red, Green, Yellow, Blue, and Transparent) and six diameters from 11mm (approx. 7/16 in) to 18mm (approx. 11/16 in), with lengths of 1 m (approx. 3.3 ft), 2 m (approx. 6.6 ft), 5 m (approx. 16.4 ft), and 10 m (approx. 32.8 ft). Cut to any length you need -- no waste.

Typical applications include automotive wiring harness repair, marine cable protection, trailer connector insulation, workshop tool cord management, and color-coded wire identification in control panels. The transparent option is especially useful when you need to inspect the connection after shrinking.

🔌 Compatibility: Fits standard copper and aluminum wire, terminals, connectors, and solder joints. Verify the pre-shrink inner diameter is larger than your wire OD before ordering. Post-shrink diameter is approximately half the listed size.

✅ Key Features of These 2:1 Heat Shrink Tubing Sleeves

  • 🔥2:1 Shrink Ratio -- Recovers to approximately half its original diameter, creating a snug, uniform fit around wire splices, terminals, and connectors without bunching or gaps.
  • 🛡Flame-Retardant Polyolefin -- Self-extinguishing material meets general UL/RoHS-compliant standards, suitable for automotive wiring harness repair and industrial electrical insulation.
  • 🌦Moisture and UV Resistance -- Resists water ingress and UV degradation, holding up in outdoor, marine, and under-hood environments where standard electrical tape fails over time.
  • 🎨7 Color Options -- Black, White, Red, Green, Yellow, Blue, and Transparent let you color-code circuits, match existing harness colors, or inspect connections through the clear sleeve.
  • 📏6 Diameter Sizes, 4 Length Options -- 11mm through 18mm covers a wide range of wire gauges and connector sizes; 1 m to 10 m rolls let you buy exactly what your project requires.
  • ✂Cut-to-Length Flexibility -- Supplied as a continuous roll so you can cut precise lengths for each splice or terminal -- ideal for heat shrink wire connector kits and custom wiring harness builds.

📐 Technical Specifications -- 2:1 Heat Shrink Tubing

Material Flame-retardant polyolefin
Shrink Ratio 2:1
Available Diameters (pre-shrink) 11mm (approx. 7/16 in), 12mm (approx. 15/32 in), 13mm (approx. 1/2 in), 14mm (approx. 9/16 in), 15mm (approx. 19/32 in), 16mm (approx. 5/8 in), 18mm (approx. 11/16 in)
Recovered Diameter (approx.) ~50% of listed diameter (e.g., 11mm recovers to ~5.5mm)
Available Lengths 1 m (approx. 3.3 ft), 2 m (approx. 6.6 ft), 5 m (approx. 16.4 ft), 10 m (approx. 32.8 ft)
Available Colors Black, White, Red, Green, Yellow, Blue, Transparent
Activation Temperature Typically 70-90 degrees C (158-194 degrees F)
Full Recovery Temperature Typically ~120 degrees C (248 degrees F)
Operating Temperature Range See variant options / Contact us to confirm
Wall Thickness (post-shrink) See variant options
Compliance RoHS-compliant material; flame-retardant rated
Application Method Heat gun (recommended), hot air station
⚠ Sizing Note: Always measure your wire or connector OD before selecting a diameter. The pre-shrink ID must be larger than your wire OD for the tubing to slide on. If you are unsure, contact us to confirm the best fit.

❓ Frequently Asked Questions

How do I choose the right diameter for my wire?

Measure the outer diameter of your wire or connector before shrinking. The tubing should slip over easily before heat is applied. As a general rule, choose a size where the recovered (post-shrink) diameter is slightly smaller than your wire OD. For example, 11mm tubing recovers to approximately 5.5mm, typically suiting wires in the 4-9mm range. When in doubt, size up -- you can always apply more heat, but you cannot un-shrink the tubing.

What shrink ratio does this tubing have?

This tubing has a 2:1 shrink ratio, meaning it shrinks to approximately half its original diameter when heat is applied. This is the most common ratio for general electrical insulation, wire bundling, and connector protection. If you need a tighter grip or waterproof adhesive lining, look for 3:1 adhesive-lined tubing instead.

What temperature is needed to shrink this tubing?

This tubing generally activates at around 70-90 degrees C (158-194 degrees F) and fully recovers at approximately 120 degrees C (248 degrees F). A standard heat gun set to low or medium is typically sufficient. Move the heat gun slowly along the tubing from one end to the other for even shrinkage. Avoid open flames, which can cause uneven shrinkage or scorching.

Is this heat shrink tubing suitable for outdoor or automotive use?

Yes. The polyolefin material used in this tubing is generally UV-resistant and moisture-resistant, making it suitable for automotive wiring harness repair, marine cable protection, and outdoor electrical connections. For fully waterproof sealing, consider adhesive-lined (3:1) tubing, which creates a sealed barrier when shrunk.

Is this tubing flame-retardant and RoHS compliant?

Yes. This heat shrink tubing is made from flame-retardant polyolefin that meets general UL/RoHS-compliant material standards. It is self-extinguishing under most conditions, making it appropriate for automotive, industrial, and DIY electrical projects where fire safety is a consideration.

Can I use this tubing on both copper and aluminum wiring?

Yes. This tubing is compatible with copper, aluminum, and most other conductive wire types. It provides electrical insulation regardless of the conductor material. Ensure the wire surface is clean and dry before applying heat for the best result.

How long can I cut each piece, and can I use scissors?

The tubing is sold in continuous lengths of 1, 2, 5, or 10 meters, which you can cut to any length with scissors or a utility knife. There is no minimum cut length -- cut exactly what you need for each connection or splice. A clean, straight cut helps the tubing slide onto the wire more easily.

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

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