18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors
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18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors

18mm Heat Shrink Tubing 2:1 – Electrical Wire Wrap, Assorted Colors

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Beschreibung

18mm Heat Shrink Tubing — Reliable Insulation for Automotive & DIY Electrical Projects

Loose wire splices, exposed terminals, and unprotected cable ends are a common headache for automotive enthusiasts, electricians, and DIYers alike. Whether you're rewiring a car harness, repairing marine connections, or tidying up a home workshop project, unprotected wires invite corrosion, shorts, and safety hazards. This 18mm heat shrink tubing gives you a fast, clean solution that stays put.

Each order includes a continuous length of 2:1 ratio polyolefin heat shrink tubing with an inner diameter of 18mm (≈0.71"). Available in lengths of 1 metre (≈3.3 ft), 2 metres (≈6.6 ft), 5 metres (≈16.4 ft), and 10 metres (≈32.8 ft), and in 7 colors — Black, White, Red, Green, Yellow, Blue, and Transparent — so you can color-code circuits or match your existing wiring scheme.

Typical use cases include automotive wire harness repair, marine and RV electrical connections, battery terminal insulation, and workshop cable management. The 2:1 shrink ratio makes it a go-to choice for anyone searching for heat shrink tubing for car wiring or electrical cable sleeve for DIY projects.

🔌 Compatibility: Fits wire bundles and connectors up to approximately 17mm in diameter. After shrinking, conforms to cables as small as ~9mm. Suitable for standard automotive, marine, and household electrical wiring applications.

✅ Key Features of These 18mm Heat Shrink Tubing Sleeves

  • 🔥2:1 Shrink Ratio — Shrinks from 18mm (≈0.71") down to approximately 9mm, creating a tight, uniform sleeve that conforms closely to wire bundles and connectors.
  • 🎨7 Color Options — Available in Black, White, Red, Green, Yellow, Blue, and Transparent, making it easy to color-code circuits in automotive wiring, control panels, and DIY electrical builds.
  • 🛡️Moisture & Abrasion Resistance — Polyolefin construction provides a protective barrier against moisture ingress, minor abrasion, and common automotive fluids — ideal for under-hood and outdoor cable protection.
  • ✂️Cut-to-Length Flexibility — Supplied in continuous rolls (1m to 10m), so you can cut exactly what you need for each splice, terminal, or connector without waste.
  • ⚡Electrical Insulation — Provides a reliable insulating layer over wire splices and exposed conductors, reducing the risk of shorts and signal interference in low-voltage electrical systems.
  • 🌡️Low Activation Temperature — Typically activates at around 70–90°C (158–194°F), compatible with standard heat guns for fast, even shrinkage without scorching surrounding components.

📐 Technical Specifications — 18mm 2:1 Heat Shrink Tubing

Product Type Heat Shrink Tubing
Inner Diameter (Before Shrink) 18mm (≈0.71")
Inner Diameter (After Shrink) ~9mm (≈0.35") — typically
Shrink Ratio 2:1
Material Polyolefin (typically)
Available Colors Black, White, Red, Green, Yellow, Blue, Transparent
Available Lengths 1m (≈3.3 ft) / 2m (≈6.6 ft) / 5m (≈16.4 ft) / 10m (≈32.8 ft)
Activation Temperature Typically ~70–90°C (158–194°F)
Full Shrink Temperature Generally ~120°C (248°F)
Wall Thickness (After Shrink) See variant options
Voltage Rating Contact us to confirm
Certifications Contact us to confirm
Recommended Tool Heat gun (lighter may cause uneven shrinkage)
⚠️ Note: Specifications such as voltage rating and certifications (UL, RoHS, MIL-SPEC) vary by production batch. If your application requires specific compliance documentation, please contact us before ordering.

❓ Frequently Asked Questions

How do I choose the right length of heat shrink tubing?

Measure the total cable run you need to protect and add 10–15% extra for overlap and trimming. For a single splice, 1 metre is typically sufficient. For wiring harnesses or longer runs, 5 or 10 metre rolls offer better value. Available lengths: 1m (≈3.3 ft), 2m (≈6.6 ft), 5m (≈16.4 ft), 10m (≈32.8 ft).

What does 2:1 shrink ratio mean?

A 2:1 shrink ratio means the tubing shrinks to half its original inner diameter when heat is applied. This 18mm tubing will shrink down to approximately 9mm, creating a snug, protective sleeve around your wire or cable.

What temperature is needed to shrink this tubing?

This tubing generally activates at around 70–90°C (158–194°F) and fully shrinks at approximately 120°C (248°F). A standard heat gun is recommended. A lighter can work in a pinch but may cause uneven shrinkage or scorching.

Can this heat shrink tubing be used outdoors or in automotive applications?

Yes. Polyolefin heat shrink tubing is generally resistant to moisture, UV exposure, and common automotive fluids, making it suitable for car wiring, marine connections, and outdoor electrical repairs. For harsh chemical environments, confirm compatibility before use.

What wire sizes does 18mm heat shrink tubing fit?

With an inner diameter of 18mm (≈0.71"), this tubing fits wire bundles, connectors, and cable ends up to approximately 17mm in diameter before shrinking. After shrinking, it conforms tightly to cables as small as roughly 9mm. For individual wires, it is typically used for larger gauge cables or grouped wire bundles.

Is the tubing RoHS compliant and safe for electrical use?

This tubing is generally manufactured from polyolefin material, which is commonly RoHS compliant and rated for standard electrical insulation applications. If your project requires specific certifications (UL, CSA, MIL-SPEC), please contact us to confirm before ordering.

Can I cut the tubing to a custom length?

Absolutely. The tubing can be cut with standard scissors or a utility knife before or after shrinking. Cut to your exact length for a clean, professional finish on splices, terminals, and connectors.

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

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