5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors
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5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors

5.5mm Heat Shrink Tubing 2:1 Ratio – Polyolefin Wire Insulation Sleeve, 7 Colors

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5.5mm Heat Shrink Tubing — Reliable Wire Insulation for Electrical & Automotive Projects

Whether you're rewiring a car, repairing a frayed cable, or organizing a home electrical panel, exposed or damaged wire insulation is a safety hazard you can't ignore. DIYers, auto technicians, and hobbyists who work with wiring regularly need a tubing solution that shrinks cleanly, holds firmly, and won't crack or peel over time. This 5.5mm heat shrink tubing delivers exactly that — a straightforward, dependable fix for wire insulation and cable management.

Each order includes your chosen length (1m, 2m, 5m, or 10m) of polyolefin heat shrink tubing with a 5.5mm (≈0.22") inner diameter before shrinking. The 2:1 shrink ratio means the tubing contracts to approximately half its original diameter when heat is applied, forming a tight, protective sleeve around your wire or cable. Available in 7 colors — Black, White, Red, Green, Yellow, Blue, and Transparent — for easy color-coding and identification.

This 5.5mm wire insulation sleeve is well suited for automotive wiring harness repair, marine cable protection, home electrical DIY projects, and electronics hobby work where color-coded cable identification is needed. The flexible polyolefin material conforms evenly around connectors and splices, making it a go-to choice for heat shrink tubing for car wiring and general electrical cable sleeve applications.

ℹ️ Compatibility Note: This tubing has a 5.5mm inner diameter (pre-shrink) and a 2:1 shrink ratio, shrinking to approximately 2.75mm. It is compatible with cables and wire bundles up to ~5mm OD. Select your color and length above before adding to cart.

✅ Key Features of These 5.5mm Heat Shrink Tubing Sleeves

  • 🔥2:1 Shrink Ratio — Shrinks to approximately half its original diameter for a firm, gap-free fit around wires, splices, and connectors in automotive and electrical wiring applications.
  • 🎨7 Color Options — Available in Black, White, Red, Green, Yellow, Blue, and Transparent, making color-coded wire identification straightforward on complex wiring harnesses.
  • 📏Flexible Length Selection — Choose from 1m (≈3.3 ft), 2m (≈6.6 ft), 5m (≈16.4 ft), or 10m (≈32.8 ft) to match your project scale without unnecessary waste.
  • 🛡️Polyolefin Construction — Polyolefin material offers resistance to moisture, abrasion, and common chemicals, making this heat shrink tubing for car wiring and outdoor cable protection a practical choice.
  • ✂️Easy to Cut and Apply — Cuts cleanly with scissors before shrinking; shrinks evenly with a standard heat gun at typically 90–120°C (194–248°F), with no special tools required.
  • ⚡Electrical Insulation Sleeve Design — Provides a protective barrier over bare wire ends, solder joints, and cable splices, reducing the risk of short circuits and abrasion damage in both DIY and professional electrical work.

📐 Technical Specifications — 5.5mm Heat Shrink Tubing

Inner Diameter (Pre-Shrink) 5.5mm (≈0.22")
Inner Diameter (Post-Shrink) Approximately 2.75mm (≈0.11") — varies by cable OD
Shrink Ratio 2:1
Material Polyolefin
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 ~90°C (194°F); full shrink at ~120°C (248°F)
Recommended Application Tool Heat gun (open flame not recommended)
Typical Wire Gauge Fit See variant options — generally suits cables up to ~5mm OD
Wall Thickness (Post-Shrink) Contact us to confirm
Voltage Rating Contact us to confirm
Operating Temperature Range Contact us to confirm
⚠️ Sizing Tip: Always measure your cable's outer diameter before ordering. The 5.5mm pre-shrink ID should be slightly larger than your cable OD for easy insertion. After shrinking, the tubing will conform tightly around the cable.

❓ Frequently Asked Questions

What does 5.5mm refer to — before or after shrinking?

The 5.5mm refers to the inner diameter before shrinking. With a 2:1 shrink ratio, the tubing will typically shrink down to approximately 2.75mm (≈0.11") when heat is applied, creating a snug fit around your wire or cable.

How do I choose the right length for my project?

Measure the total run of wire or cable you need to cover, then add 10–15% extra for trimming and overlap. For single wire repairs, 1m or 2m is generally sufficient. For automotive wiring harnesses or larger installations, 5m or 10m lengths offer better value per meter.

What temperature is needed to shrink this tubing?

Polyolefin heat shrink tubing typically activates at around 90°C (194°F) and fully shrinks at approximately 120°C (248°F). A heat gun is recommended for even, controlled shrinking. Avoid open flames, which can scorch or unevenly shrink the tubing.

Can this tubing be used outdoors or in automotive applications?

Yes. Polyolefin is generally resistant to moisture, UV exposure, and common automotive fluids, making it suitable for outdoor wiring, engine bay cable management, and marine applications. For highly corrosive environments, consider adhesive-lined variants for added sealing.

What wire gauge does 5.5mm heat shrink tubing fit?

A 5.5mm inner diameter typically accommodates wire bundles or cables up to approximately 5mm in outer diameter before shrinking. This generally corresponds to AWG 4–8 single conductors or small multi-wire bundles. Always measure your cable's outer diameter before selecting a size to ensure a proper fit.

Is this tubing RoHS compliant and safe for electrical use?

Polyolefin heat shrink tubing is generally manufactured to meet RoHS standards and is widely used in electrical insulation applications. For specific compliance certifications relevant to your application, please contact us to confirm before use in regulated or safety-critical systems.

Can I use scissors or a knife to cut the tubing to length?

Yes. The tubing cuts cleanly with standard scissors or a utility knife before shrinking. For the cleanest edge, cut perpendicular to the tube axis. Cutting after shrinking is also possible but may require more effort due to the tighter, stiffer material.

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

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