2:1 Heat Shrink Tubing — Electrical Wire Sleeving, Ø0.6mm–150mm

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2:1 Heat Shrink Tubing — Electrical Wire Sleeving, Ø0.6mm–150mm

Name: 2:1 Heat Shrink Tubing — Electrical Wire Sleeving, Ø0.6mm–150mm
Brand: HomeDIYer
Price: 1.88 USD
Availability: InStock

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By HomeDIYer®

Shrink ratio: 2:1

Diameter: Ø0.6mm

Packing Qty: 1m

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$1.88 USD

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In stock (500 units), ready to be shipped

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2:1 Heat Shrink Tubing — Reliable Electrical Wire Insulation & Cable Protection

Whether you're repairing a frayed wire under the dashboard, bundling cables in a control panel, or protecting solder joints on a DIY electronics build, exposed conductors are a safety hazard you can't ignore. Electricians, automotive technicians, hobbyists, and workshop professionals all rely on heat shrink tubing to create clean, durable insulation that stays put.

This 2:1 heat shrink tubing is made from flexible polyolefin material and is available in a wide range of diameters from Ø0.6mm (≈0.024") up to Ø150mm (≈5.9"), with packing quantities from 1m up to 50m per order. The 2:1 shrink ratio means each tube shrinks to approximately half its original inner diameter when heat is applied, forming a tight, conforming sleeve around your wire or connector.

Typical use cases include automotive wiring harness repair, electrical panel cable management, marine wire protection, RC and hobby electronics builds, and general-purpose heat shrink wire insulation for home and workshop projects.

🔌 Compatibility: Suitable for copper, aluminum, and stranded wire. Works with standard heat guns, soldering station hot-air attachments, and heat lighters. Shrink activation typically begins around 90°C (194°F). Not recommended for bare contact with open flame.

✅ Key Features of These 2:1 Heat Shrink Tubes

🔥True 2:1 Shrink Ratio — Shrinks to approximately half its original inner diameter, creating a snug, conforming fit around wires, connectors, and terminals for reliable heat shrink wire insulation.
📏Wide Diameter Range — Available from Ø0.6mm (≈0.024") to Ø150mm (≈5.9"), covering everything from fine gauge electronics wiring to large cable bundles and conduit ends.
🧪Polyolefin Construction — Flexible, low-shrink-temperature polyolefin material offers good resistance to moisture, mild chemicals, and abrasion — suitable for automotive, marine, and indoor electrical applications.
⚡Electrical Insulation Performance — Generally rated up to 600V, this electrical sleeving tubing provides a protective barrier over solder joints, splices, and bare conductors to reduce short-circuit risk.
✂️Cut-to-Length Flexibility — Sold in lengths from 1m to 50m, so you can order exactly what your project requires — from a single cable repair to a full wiring harness build.
🏭Consistent Wall Thickness — Uniform wall construction ensures even shrinkage around the circumference, reducing gaps or thin spots that could compromise insulation integrity on heat shrink electrical sleeving.

📐 Technical Specifications — Heat Shrink Tubing 2:1

Product Type	Polyolefin Heat Shrink Tubing
Shrink Ratio	2:1
Available Diameters (pre-shrink)	Ø0.6mm – Ø150mm (≈0.024" – ≈5.9")
Available Lengths	1m, 2m, 5m, 10m, 20m, 50m
Material	Polyolefin
Shrink Temperature	Typically activates ~90°C (194°F), fully shrinks ~120°C (248°F)
Voltage Rating	Generally up to 600V (contact us to confirm for your application)
Color / Finish	See variant options
Wall Thickness (post-shrink)	See variant options
Operating Temperature Range	Contact us to confirm
Compliance / Standards	Contact us to confirm

⚠️ Sizing Note: Always measure the outer diameter of your wire or connector before selecting a size. The listed diameter is the pre-shrink inner diameter. After shrinking, the tubing will be approximately half that size. When in doubt, size up — you can always apply more heat, but you cannot un-shrink tubing.

❓ 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 pre-shrink inner diameter is at least 10–20% larger than that measurement. With a 2:1 shrink ratio, the tubing will shrink to approximately half its original diameter. For example, Ø6mm tubing (≈1/4" pre-shrink) will shrink down to roughly Ø3mm (≈1/8"). When in doubt, size up slightly — a slightly loose fit before shrinking is better than tubing that won't slide over your connector.

What does 2:1 shrink ratio mean?

A 2:1 shrink ratio means the tubing will shrink to approximately half its original inner diameter when heat is applied. For example, a Ø10mm (≈3/8") tube will shrink to roughly Ø5mm (≈3/16"), creating a snug, insulating sleeve around your wire or cable. This is the most common ratio for general electrical and automotive wiring applications.

What temperature is needed to shrink this tubing?

Standard 2:1 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 the recommended tool for even, controlled shrinkage. A lighter can work in a pinch but may cause uneven shrinkage or scorching. Move the heat source continuously along the tubing rather than holding it in one spot.

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

Polyolefin heat shrink tubing is generally resistant to moisture, UV exposure, and mild chemicals, making it suitable for many outdoor and marine applications. However, for long-term submersion or extreme UV environments, a dual-wall adhesive-lined heat shrink variant is generally recommended for a fully waterproof seal. Contact us to confirm suitability for your specific use case.

Is this tubing compatible with automotive wiring and connectors?

Yes, 2:1 polyolefin heat shrink tubing is widely used in automotive wiring harness repair, connector insulation, and cable protection. It is generally resistant to engine bay temperatures and common automotive fluids. For high-heat zones near exhaust components or turbochargers, a higher-temperature rated tubing may be more appropriate. Contact us to confirm if you have a specific temperature requirement.

How much length should I order for my project?

For small repairs or single-splice jobs, 1m or 2m is typically sufficient. For wiring harness projects, electrical panel builds, or ongoing workshop use, 5m, 10m, or 50m rolls offer better value per meter. We offer packing quantities from 1m up to 50m so you can match your order to your project scale without waste.

What is the voltage rating of this heat shrink tubing?

Standard polyolefin 2:1 heat shrink tubing is generally rated for up to 600V, making it suitable for most residential, automotive, and low-voltage industrial wiring applications. For high-voltage applications beyond this range, please contact us to confirm the appropriate specification before ordering.

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

2:1 Heat Shrink Tubing — Electrical Wire Sleeving, Ø0.6mm–150mm

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Description

2:1 Heat Shrink Tubing — Reliable Electrical Wire Insulation & Cable Protection

✅ Key Features of These 2:1 Heat Shrink Tubes

📐 Technical Specifications — Heat Shrink Tubing 2:1

❓ Frequently Asked Questions

2:1 Heat Shrink Tubing — Electrical Wire Sleeving, Ø0.6mm–150mm

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