2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm
Roll over image to zoom in Click on image to zoom
2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm

2:1 Heat Shrink Tubing – Electrical Insulation Cable Sleeve φ28mm to φ60mm

HomeDIYer
No reviews

By HomeDIYer®

Price:
$4.04 USD
Stock:
In stock (500 units), ready to be shipped

Payment & Security

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

 

2:1 Heat Shrink Tubing — Reliable Electrical Insulation for Every Wire and Cable

Whether you're rewiring a vehicle, bundling cables in a control panel, or protecting exposed terminals in a marine environment, loose or uninsulated wires are a safety hazard and a frustration. This 2:1 heat shrink tubing gives electricians, automotive technicians, and serious DIYers a clean, durable solution that seals and protects in seconds.

Each piece is made from flame-retardant polyolefin and is available in unshrunk diameters from φ28mm (≈1.1") to φ60mm (≈2.4"), with lengths of 1M (≈3.3 ft), 2M (≈6.6 ft), 3M (≈9.8 ft), 5M (≈16.4 ft), and 8M (≈26.2 ft). Seven color options — Black, White, Red, Green, Yellow, Blue, and Clear — make color-coding circuits straightforward. With a 2:1 shrink ratio, the tubing shrinks to approximately half its listed diameter when heat is applied.

Typical use cases include insulating automotive wiring harnesses, protecting marine cable splices from moisture, bundling and labeling data center cables, and covering exposed terminals on battery connections — all scenarios where a clean, long-lasting electrical insulation sleeve is essential.

ℹ️ Compatibility Note: Diameter listed is the unshrunk inner diameter. After applying heat, tubing shrinks to approximately 50% of the listed size. Always measure your wire or connector OD before selecting a size.

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

  • 🔥2:1 Shrink Ratio — Shrinks to approximately half its unshrunk diameter, creating a snug, form-fitting electrical insulation sleeve around wires, terminals, and connectors.
  • 🛡️Flame-Retardant Polyolefin — Made from polyolefin material that resists ignition and self-extinguishes, making it suitable for automotive wiring harness repair and panel wiring.
  • 🎨7 Color Options — Available in Black, White, Red, Green, Yellow, Blue, and Clear for easy circuit color-coding and cable identification in complex wiring systems.
  • 📏Wide Diameter Range — Covers φ28mm (≈1.1") to φ60mm (≈2.4") unshrunk, accommodating everything from mid-size wire bundles to large cable assemblies and battery terminals.
  • 📦Multiple Length Options — Choose from 1M up to 8M per piece so you can buy exactly what your heat shrink cable sleeve project requires without excess waste.
  • 💧Moisture and Abrasion Resistance — Provides a protective barrier against moisture ingress, dust, and light abrasion, extending the service life of wire splices and connector insulation in demanding environments.

📐 Technical Specifications — 2:1 Heat Shrink Tubing

Material Flame-retardant polyolefin
Shrink Ratio 2:1
Unshrunk Diameter Options φ28mm (≈1.1"), φ30mm (≈1.2"), φ35mm (≈1.4"), φ40mm (≈1.6"), φ45mm (≈1.8"), φ50mm (≈2.0"), φ60mm (≈2.4")
Approximate Shrunk Diameter ~50% of unshrunk diameter (e.g., φ28mm shrinks to ≈φ14mm)
Available Lengths 1M (≈3.3 ft), 2M (≈6.6 ft), 3M (≈9.8 ft), 5M (≈16.4 ft), 8M (≈26.2 ft)
Colors Black, White, Red, Green, Yellow, Blue, Clear
Activation Temperature Typically ~90°C (194°F); full shrink at ~120°C (248°F)
Operating Temperature Range See variant options / Contact us to confirm
Wall Thickness (shrunk) See variant options
Voltage Rating Contact us to confirm
Flame Retardancy Yes (polyolefin, self-extinguishing)
Recommended Tool Heat gun
⚠️ Sizing Tip: The diameter listed is the unshrunk inner diameter. Select a size that is at least 10–20% larger than the outer diameter of your wire or connector for a proper fit after shrinking.

❓ Frequently Asked Questions

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

Measure the outer diameter of the wire or connector you need to cover. Choose a tubing size whose unshrunk inner diameter is at least 10–20% larger than your component. With a 2:1 shrink ratio, the tubing will shrink to approximately half its listed diameter. For example, φ28mm (≈1.1" unshrunk) shrinks to roughly φ14mm (≈0.55"). For a 1" OD cable bundle, φ30mm or φ35mm unshrunk would generally be appropriate.

What shrink ratio does this tubing use?

This tubing uses a 2:1 shrink ratio, meaning it will shrink to approximately half its original listed (unshrunk) diameter when heat is applied. If you need a tighter grip or waterproofing, consider adhesive-lined 3:1 tubing instead.

What temperature is needed to shrink this tubing?

Polyolefin heat shrink tubing generally activates at around 90°C (194°F) and fully shrinks at approximately 120°C (248°F). A heat gun is recommended for even, controlled shrinkage. Avoid open flames where possible, as uneven heat can cause scorching or incomplete shrinkage on larger diameters.

Can this heat shrink tubing be used outdoors or in wet environments?

This tubing is generally suitable for outdoor use in dry or mildly humid environments and provides good UV and moisture resistance. For fully waterproof or submersible applications, we recommend using adhesive-lined (3:1) heat shrink tubing, which creates a sealed barrier. Contact us to confirm suitability for your specific environment.

Is this tubing flame-retardant and safe for automotive wiring?

Yes. This polyolefin heat shrink tubing is typically flame-retardant and self-extinguishing, making it suitable for automotive wiring harness repair, marine cable protection, and general electrical insulation. It is not designed for continuous high-voltage industrial applications — please contact us if you have specific compliance or voltage rating requirements.

What wire gauges or connector types is this compatible with?

This tubing is compatible with a wide range of wire gauges, terminals, butt connectors, ring terminals, and cable bundles. The φ28–60mm unshrunk diameter range covers most mid-to-large automotive, marine, and industrial wiring applications. Always verify the unshrunk inner diameter is larger than your component's outer diameter before ordering.

Can I use a lighter instead of a heat gun to shrink this tubing?

A heat gun is strongly recommended for even shrinkage and to avoid scorching. A lighter can be used in a pinch for small sections, but uneven heat may cause bubbling, discoloration, or incomplete shrinkage — especially on larger diameters like φ40mm and above. For best results, use a heat gun set to the appropriate temperature range.

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

You may also like

Recently viewed