Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm
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Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mmBlack Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm

Black Heat Shrink Tubing — 2:1, 3:1 & 4:1 Shrink Ratio | Ø0.6mm to Ø210mm

HomeDIYer
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By HomeDIYer®

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$1.84 USD
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In stock (500 units), ready to be shipped

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Description

 

Black Heat Shrink Tubing — Reliable Insulation from Ø0.6mm to Ø210mm

Exposed wire splices, loose connector joints, and unprotected cable ends are a constant headache for electricians, automotive technicians, hobbyists, and DIYers. One nick in the insulation can mean a short circuit, corrosion, or a failed inspection. This black heat shrink tubing gives you a clean, durable, professional-grade solution that seals and protects in seconds.

Each roll is made from flame-retardant polyolefin and is available in unshrunk diameters from Ø0.6mm (≈0.024") to Ø210mm (≈8.27"), with lengths of 1 m (≈3.3 ft) up to 20 m (≈65.6 ft) per order. Three shrink ratios are offered — 2:1, 3:1, and 4:1 — so you can match the right recovery to your application, whether you are sleeving a fine signal wire or wrapping a large conduit bundle.

Common use cases include automotive wiring harness repair, marine cable protection, electrical panel wire management, RC and hobby electronics, and industrial cable bundling. The uniform black finish also works well for heat shrink tubing for wire connectors where a clean, factory-look result matters.

ℹ️ Compatibility Note: Select the unshrunk diameter that is approximately 20–30% larger than your cable or connector's outer diameter. For example, a 4mm cable typically pairs with Ø5mm or Ø6mm tubing at 2:1 ratio. See the FAQ below for a full sizing guide.

✅ Key Features of These Black Heat Shrink Tubes

  • 🔥Wide Shrink Ratio Selection — Available in 2:1, 3:1, and 4:1 ratios, giving you the right recovery for everything from simple wire insulation to conforming tightly around irregular connector shapes.
  • 📏Extensive Diameter Range — Covers Ø0.6mm to Ø210mm (≈0.024" to ≈8.27"), making this heat shrink tubing for large cables and fine wires available in a single product line.
  • 🛡️Flame-Retardant Polyolefin — The tubing material is designed to resist ignition and self-extinguish, an important property for automotive, marine, and electrical panel applications.
  • 💧Moisture and Abrasion Resistance — Once shrunk, the tubing forms a snug sleeve that resists moisture ingress, mild chemicals, and mechanical abrasion, extending the service life of your connections.
  • ✂️Cut-to-Length Flexibility — Supplied in continuous lengths (1 m to 20 m), so you can cut exactly what you need for each job without waste — ideal for electrical heat shrink tubing bulk projects.
  • ⚡Consistent Wall Thickness — Uniform wall construction ensures even shrinkage along the full length of the sleeve, preventing thin spots that could compromise insulation integrity.

📐 Technical Specifications — Heat Shrink Tubing

Material Flame-retardant polyolefin
Color Black
Shrink Ratios Available 2:1, 3:1, 4:1
Unshrunk Diameter Range Ø0.6mm–Ø210mm (≈0.024"–≈8.27")
Available Lengths 1 m, 2 m, 3 m, 5 m, 10 m, 20 m (see variant options)
Shrink Temperature (typical) Begins ~70–90°C (158–194°F); full recovery ~120°C (248°F)
Operating Temperature Range See variant options or contact us to confirm
Flame Retardancy Flame-retardant construction (contact us for certification docs)
RoHS Compliance Contact us to confirm for your specific variant
Application Method Heat gun recommended; avoid open flame
Sold As Continuous roll — cut to length as needed
⚠️ Sizing Tip: Always measure your cable's outer diameter before ordering. If you are between sizes, choose the next size up. The tubing cannot be stretched after shrinking.

❓ Frequently Asked Questions

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

Measure the outer diameter of the cable or connector you need to cover. Choose a tubing diameter that is typically 20–30% larger than the object before shrinking. For example, a 4mm cable generally works well with Ø5mm or Ø6mm tubing (2:1 ratio). When in doubt, size up — you can always shrink tighter, but you cannot stretch tubing that is too small.

What is the difference between 2:1, 3:1, and 4:1 shrink ratios?

The shrink ratio describes how much the tubing reduces in diameter when heat is applied. A 2:1 ratio means the tubing shrinks to half its original diameter; 3:1 shrinks to one-third; 4:1 shrinks to one-quarter. Higher ratios are generally used for irregular shapes, connectors, or applications requiring a tighter, more conforming seal.

What temperature is needed to shrink this tubing?

Polyolefin heat shrink tubing typically begins to shrink at around 70–90°C (158–194°F) and fully recovers at approximately 120°C (248°F). A heat gun set to low or medium is generally sufficient. Avoid open flames, which can cause uneven shrinkage or scorching.

Is this heat shrink tubing suitable for outdoor or marine use?

Standard polyolefin heat shrink tubing provides good resistance to moisture, UV, and mild chemicals, making it suitable for many outdoor applications. For fully waterproof or marine-grade sealing, we recommend using adhesive-lined (dual-wall) heat shrink tubing, which creates a moisture-resistant seal when shrunk. Please contact us to confirm suitability for your specific environment.

What wire gauges or cable sizes does this tubing fit?

This tubing is available in diameters from Ø0.6mm to Ø210mm (≈0.024" to ≈8.27"), covering wire gauges from very fine signal wires up to large power cables and conduit bundles. Select the variant whose unshrunk diameter is approximately 20–30% larger than your cable's outer diameter.

Is this tubing flame-retardant and RoHS compliant?

Polyolefin heat shrink tubing of this type is generally manufactured to be flame-retardant and is typically compliant with RoHS directives. For specific compliance documentation or certifications, please contact us to confirm before use in regulated applications.

Can I use this tubing for automotive wiring repairs?

Yes. Heat shrink tubing is widely used in automotive wiring harness repair, connector insulation, and wire bundling. The black color blends with most factory wiring. For engine bay or high-heat zones, verify the operating temperature range of the specific variant before installation.

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

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