Heat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M Length
Heat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M Length
Heat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M Length
Heat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M Length
Heat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M Length
Heat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M Length
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Heat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M LengthHeat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M LengthHeat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M LengthHeat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M LengthHeat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M LengthHeat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M Length

Heat Shrink Tubing 2:1 Ratio – φ0.6mm to φ50mm, 7 Colors, 1M Length

HomeDIYer
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By HomeDIYer®

Price:
$1.35 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Heat Shrink Tubing 2:1 — Reliable Wire Insulation for Every Project

Dealing with frayed wires, exposed splices, or bare connectors is a safety hazard that slows down any project. Whether you're a hobbyist building electronics, an auto technician repairing a wiring harness, or a professional electrician finishing a clean install, having the right heat shrink tubing on hand makes the difference between a job that looks and performs professionally and one that doesn't.

Each piece is sold as 1 meter (≈39.4 in) of 2:1 ratio polyolefin heat shrink tubing, available in 34 diameters from φ0.6mm (≈0.024") to φ50mm (≈1.97") and 7 colors: Black, White, Red, Green, Yellow, Blue, and Transparent. The flame-retardant material shrinks uniformly when heat is applied, forming a tight, protective sleeve over wires, terminals, and connectors.

Typical applications include automotive wiring harness repair, DIY electronics wire insulation, marine cable protection, color-coded wire identification, and strain relief on soldered joints. The wide size range means one product line covers everything from delicate signal wires to large power cables.

ℹ️ Compatibility: Fits standard round wires, cables, and connectors. Select a pre-shrink diameter 10–20% larger than your wire's outer diameter for a secure fit after shrinking. Shrinks to approximately half its expanded diameter (2:1 ratio).

✅ Key Features of These Heat Shrink Tubes

  • 🔥True 2:1 Shrink Ratio — Shrinks to approximately half its expanded inner diameter, creating a snug, uniform sleeve ideal for wire insulation and connector sealing.
  • 📏34 Sizes in One Listing — Covers φ0.6mm to φ50mm, so you can find the right fit for fine signal wires, automotive cables, and large conduit bundles without ordering from multiple suppliers.
  • 🎨7 Color Options — Black, White, Red, Green, Yellow, Blue, and Transparent allow color-coded wire identification, making circuit tracing and maintenance faster and more organized.
  • 🛡️Flame-Retardant Polyolefin Material — Resists moisture, mild chemicals, and abrasion, making it suitable for automotive wiring repair, marine environments, and outdoor electrical installations.
  • ⚡Consistent Wall Thickness — Uniform shrinkage along the full 1-meter length ensures even insulation coverage with no thin spots, reducing the risk of electrical shorts at repair points.
  • ✂️Easy to Cut and Apply — Cuts cleanly with scissors or a utility knife; shrinks quickly with a standard heat gun or even a lighter for small diameters, making it practical for field repairs and bench work alike.

📐 Technical Specifications — Heat Shrink Tubing

Product Type Heat Shrink Tubing
Material Polyolefin (flame-retardant)
Shrink Ratio 2:1
Available Diameters φ0.6mm (≈0.024") – φ50mm (≈1.97"), 34 sizes
Length per Unit 1 meter (≈39.4 in)
Available Colors Black, White, Red, Green, Yellow, Blue, Transparent
Shrink Temperature Typically 120°C (248°F) full recovery
Operating Temperature See variant options / Contact us to confirm
Voltage Rating See variant options / Contact us to confirm
Flame Retardancy Yes (polyolefin, flame-retardant grade)
Suitable Applications Wire insulation, cable bundling, automotive wiring, marine, electronics
Country of Origin See variant options
⚠️ Note: Voltage rating and continuous operating temperature vary by diameter and batch. If your application requires certified ratings (e.g., UL, RoHS), please contact us to confirm before ordering.

❓ 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 expanded (pre-shrink) inner diameter is slightly larger than your wire — typically 10–20% larger. After shrinking at a 2:1 ratio, the tubing will grip the wire snugly. For example, a φ4mm tube shrinks down to approximately φ2mm. If you're working in inches, 1mm ≈ 0.039 in, so φ6mm ≈ 1/4 inch.

What is the shrink ratio and what does 2:1 mean?

A 2:1 shrink ratio means the tubing will shrink to approximately half its original expanded diameter when heat is applied. For example, a φ10mm tube will shrink down to roughly φ5mm. This ratio is the most common for general-purpose wire insulation and cable bundling.

What temperature is needed to shrink the 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 shrinking or scorching.

Is this heat shrink tubing flame-retardant and safe for outdoor use?

This tubing is generally made from flame-retardant polyolefin material, which provides good resistance to moisture, mild chemicals, and UV exposure. For extended outdoor or harsh-environment use, confirm the specific variant's rating. In most cases, it is suitable for automotive, marine, and outdoor electrical applications.

What wire gauges is this tubing compatible with?

With sizes ranging from φ0.6mm to φ50mm, this tubing is compatible with a very wide range of wire gauges — from fine signal wires (typically AWG 30–28 for the smallest sizes) up to large power cables and conduit bundles for the largest sizes. Always match the expanded inner diameter to your wire's outer diameter for a secure fit.

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 splicing. The flame-retardant polyolefin material generally withstands the temperature and vibration conditions found in engine bays and under-dash installations. Select the appropriate diameter for your specific wire or connector.

How much tubing do I get per order?

Each variant is sold as 1 meter (≈39.4 inches) of tubing in your chosen diameter and color. If you need longer runs, simply add multiple units to your cart.

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

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