2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors
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2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors

2:1 Heat Shrink Tubing – Wire Insulation Sleeving φ25–45mm, Multiple Colors

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Beschreibung

2:1 Heat Shrink Tubing — Reliable Wire Insulation for DIYers and Professionals

Exposed wire splices, loose connector joints, and unprotected cable ends are a constant headache for electricians, automotive technicians, hobbyists, and home DIYers alike. One nick in the insulation can mean a short circuit, a failed project, or a safety hazard. This 2:1 heat shrink tubing gives you a fast, clean, and durable solution for protecting and organizing wires of all kinds.

Each piece of tubing is made from flexible polyolefin material and is available in diameters ranging from φ25mm (≈1.0") to φ45mm (≈1.77"), with lengths of 1M (≈3.3 ft), 2M (≈6.6 ft), and 5M (≈16.4 ft). The 2:1 shrink ratio means the tubing shrinks to approximately half its original diameter when heat is applied, creating a snug, form-fitting sleeve. Choose from seven colors — Black, White, Red, Green, Yellow, Blue, and Transparent — for easy color-coding and identification.

This heat shrink tubing is a go-to solution for automotive wiring harness repair, marine cable protection, electrical panel organization, and DIY electronics projects. Whether you're bundling speaker wires in a car audio build, sealing a splice on a boat, or tidying up a home workshop project, this sleeving delivers a clean, professional finish every time.

🔌 Compatibility: Fits wires, cables, connectors, and terminals with an outer diameter up to the selected tubing size. Shrinks to approximately 50% of original inner diameter. Compatible with standard heat guns and warm-air tools.

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

  • 🔥2:1 Shrink Ratio — Shrinks to half its original diameter for a tight, secure fit around wires, connectors, and terminals without gaps or loose ends.
  • 🎨7 Color Options — Available in Black, White, Red, Green, Yellow, Blue, and Transparent for easy wire color-coding and circuit identification in automotive and electrical work.
  • 📏Wide Diameter Range — Six sizes from φ25mm to φ45mm cover a broad range of cable and connector diameters, making this heat shrink wire sleeving versatile across projects.
  • ⚡Electrical Insulation — Polyolefin construction provides reliable dielectric insulation, helping protect splices and exposed conductors from short circuits and accidental contact.
  • 💧Moisture Resistance — Once shrunk, the tubing forms a close-fitting sleeve that resists moisture ingress, making it suitable for protected outdoor and automotive cable protection applications.
  • ✂️Easy to Cut and Apply — Cuts cleanly with scissors or a utility knife; shrinks quickly and evenly with a standard heat gun, ideal for DIY wire insulation wrap projects.

📐 Technical Specifications — Heat Shrink Tubing Sleeving

Product Type 2:1 Heat Shrink Tubing
Material Polyolefin (typically)
Shrink Ratio 2:1
Available Diameters φ25mm (≈1.0"), φ28mm (≈1.1"), φ30mm (≈1.18"), φ35mm (≈1.38"), φ40mm (≈1.57"), φ45mm (≈1.77")
Available Lengths 1M (≈3.3 ft), 2M (≈6.6 ft), 5M (≈16.4 ft)
Available Colors Black, White, Red, Green, Yellow, Blue, Transparent
Shrink Temperature Typically 90–120°C (194–248°F)
Voltage Rating See variant options / Contact us to confirm
Wall Thickness (after shrink) See variant options
Application Method Heat gun or warm-air tool
Typical Use Wire insulation, cable bundling, connector protection, automotive wiring
⚠️ Note: Always measure your wire or connector diameter before selecting a size. The tubing should slide over the object easily before heat is applied. When in doubt, size up.

❓ Frequently Asked Questions

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

Select a diameter that is slightly larger than the object you need to cover before shrinking. With a 2:1 ratio, the tubing will shrink to approximately half its original diameter. For example, φ25mm tubing will shrink to roughly 12.5mm (≈0.5"). Measure your wire or connector at its widest point and choose the next size up for easy installation.

What does 2:1 shrink ratio mean?

A 2:1 shrink ratio means the tubing will shrink to half its original inner diameter when heat is applied. This allows the sleeve to conform tightly around wires, connectors, and terminals for a secure, insulated fit. For example, φ40mm tubing will shrink down to approximately φ20mm (≈0.79").

What temperature is needed to shrink this tubing?

This tubing generally requires a heat source of around 90–120°C (194–248°F) to begin shrinking. A heat gun is recommended for even, controlled shrinkage. Avoid open flames, which can cause uneven shrinking or damage to the tubing or underlying wire insulation.

Is this heat shrink tubing suitable for outdoor use?

This tubing is generally suitable for indoor and protected outdoor applications. It provides moisture resistance once properly shrunk. For harsh outdoor environments with prolonged UV or chemical exposure, adhesive-lined heat shrink variants typically offer better long-term sealing performance.

What voltage rating does this tubing support?

Standard 2:1 polyolefin heat shrink tubing of this type typically supports up to 600V. Please contact us to confirm the specific rating for your application before use in high-voltage systems or safety-critical installations.

Can I use this tubing for automotive wiring repairs?

Yes, heat shrink tubing is widely used in automotive wiring harness repair to insulate splices, protect connectors, and bundle cables neatly. Choose a diameter that fits snugly over your connector or splice for the best result. The color options also make it easy to match or code your vehicle's existing wiring.

How do I cut the tubing to the right length?

Use sharp scissors or a utility knife to cut the tubing to your desired length before applying heat. Cut slightly longer than needed — typically 5–10mm extra on each end — to ensure full coverage after shrinking. The tubing also shortens slightly in length as it shrinks in diameter.

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

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