2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter
2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter
2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter
2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter
2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter
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2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter

2:1 Black Heat Shrink Tubing 0.6–80mm Diameter — 1 Meter

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Beschreibung

2:1 Black Heat Shrink Tubing — Reliable Insulation from 0.6mm to 80mm

Whether you're repairing automotive wiring, protecting soldered joints on a PCB, or bundling cables in a home workshop, finding the right 2:1 black heat shrink tubing in the exact diameter you need shouldn't be a scavenger hunt. Electricians, hobbyists, automotive technicians, and DIYers all run into the same problem: tubing that's too thick, too thin, or sold only in bulk rolls. This listing solves that.

Each piece is a 1-meter (≈39.4") length of 2:1 ratio polyolefin heat shrink tubing in black. Diameters range from 0.6mm (≈0.024") up to 80mm (≈3.15"), covering everything from fine signal wires to large battery cables and conduit bundles. The 2:1 shrink ratio means the tubing recovers to approximately half its expanded inner diameter when heated, creating a snug, uniform sleeve around your component.

Typical use cases include automotive wire harness repair and connector insulation, strain relief on soldered wire-to-board connections in electronics projects, and cable management and color-coding in control panels or home electrical enclosures — all scenarios where a clean, durable heat shrink wire sleeve makes the difference between a professional finish and a messy one.

🔌 Compatibility: Fits wire gauges from fine signal wire up to large-diameter battery cables and conduit. Select the diameter that matches or slightly exceeds the outer dimension of your component. Shrinks to approximately half the listed diameter when heat is applied.
⚠️ Tip: Always measure your wire or connector's outer diameter before selecting a size. The listed diameter is the expanded (pre-shrink) inner diameter. If you're unsure, size up — you can always apply more heat, but you can't un-shrink tubing.

✅ Key Features of These 2:1 Black Heat Shrink Tubes

  • 📏Wide Diameter Range — Available from 0.6mm (≈0.024") to 80mm (≈3.15"), this heat shrink tubing for wire covers everything from delicate signal leads to heavy-gauge battery cables in a single product line.
  • 🔥True 2:1 Shrink Ratio — Recovers to approximately half its expanded diameter, forming a tight, uniform sleeve. Shrinkage typically begins around 70°C (158°F) and completes at approximately 120–125°C (248–257°F).
  • ⚡Polyolefin Construction — Made from cross-linked polyolefin, this electrical insulation tubing resists moisture, mild chemicals, and abrasion while remaining flexible after shrinking — no cracking or brittleness over time.
  • ✂️Cut-to-Length Convenience — Each 1-meter piece can be trimmed to any shorter length with scissors before or after shrinking, making it ideal for heat shrink wire repair jobs of any scale.
  • 🚗Automotive & Electronics Ready — Rated for low-voltage applications (typically up to 600V), this tubing is widely used for automotive wiring harness insulation, connector sealing, and PCB strain relief.
  • 🎨Clean Black Finish — The matte black color provides a professional appearance for visible cable runs, control panels, and under-hood wiring, while also offering basic UV resistance for semi-exposed installations.

📐 Technical Specifications — 2:1 Heat Shrink Tubing

Material Cross-linked polyolefin
Shrink Ratio 2:1
Color Black
Expanded Inner Diameter 0.6mm (≈0.024") – 80mm (≈3.15") — see variant options
Recovered Inner Diameter Approximately half the expanded diameter (varies by size)
Length per Piece 1 meter (≈39.4")
Voltage Rating Typically up to 600V (low-voltage applications)
Shrink Temperature Typically begins at ~70°C (158°F); full recovery at ~120–125°C (248–257°F)
Operating Temperature Range Generally -55°C to +125°C (-67°F to +257°F)
Wall Thickness (recovered) Contact us to confirm for specific diameter
Flame Retardancy Generally meets UL 224 / VW-1 flame retardant standard (contact us to confirm)
Application Method Heat gun recommended; avoid open flame

❓ Frequently Asked Questions

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

Measure the outer diameter of the wire, connector, or bundle you need to cover. Choose a heat shrink size whose expanded (pre-shrink) inner diameter is slightly larger than your component — generally 10–20% larger. After shrinking at 2:1 ratio, the tubing will conform tightly. For example, a 10mm (3/8") tube shrinks down to approximately 5mm (3/16").

What voltage rating does this heat shrink tubing have?

This 2:1 polyolefin heat shrink tubing is typically rated for up to 600V (low-voltage applications). It is generally suitable for automotive wiring, household electrical repairs, and low-voltage electronics. For high-voltage or industrial applications, please confirm the specific rating with us before ordering.

Can this heat shrink tubing be used outdoors?

Standard 2:1 polyolefin heat shrink tubing offers moderate UV and moisture resistance, making it generally suitable for short-term outdoor use. For long-term outdoor or marine environments, we recommend using adhesive-lined (3:1 or 4:1) heat shrink tubing for a waterproof seal. Contact us to confirm suitability for your specific application.

What temperature is needed to shrink this tubing?

This tubing typically begins to shrink at around 70°C (158°F) and fully recovers at approximately 120–125°C (248–257°F). A heat gun is the recommended tool. Avoid open flames, which can cause uneven shrinkage or scorching.

Is this tubing compatible with standard wire gauges and connectors?

Yes. With diameters ranging from 0.6mm to 80mm, this tubing is compatible with a wide range of wire gauges (from fine signal wires up to large battery cables), butt connectors, ring terminals, and cable bundles. Select the diameter that matches your component's outer dimension.

Can I cut this tubing to a shorter length?

Absolutely. Each piece is sold as a 1-meter (≈39.4") length and can be cut to any shorter length with scissors or a utility knife before or after shrinking. Cut cleanly at a right angle for the neatest result.

What is the difference between 2:1 and 3:1 heat shrink tubing?

The ratio describes how much the tubing shrinks in diameter. A 2:1 tube shrinks to half its original diameter — ideal for most wire insulation and bundling tasks. A 3:1 (or 4:1) tube shrinks more aggressively and is often adhesive-lined for waterproofing. For standard electrical insulation and strain relief, 2:1 is generally the right choice.

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

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