2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths
2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths
2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths
2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths
2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths
2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths
2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths
2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths
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2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths

2:1 Polyolefin Heat Shrink Tubing — φ3.5mm to φ6mm, Multiple Colors & Lengths

HomeDIYer
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By HomeDIYer®

Price:
$1.85 USD
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In stock (500 units), ready to be shipped

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Description

2:1 Polyolefin Heat Shrink Tubing — Reliable Insulation for Wires, Cables & Connectors

Whether you're a DIY enthusiast rewiring a home project, an auto technician protecting harness connections, or a maker building electronics, loose wire ends and exposed connectors are a constant headache. This 2:1 polyolefin heat shrink tubing gives you a clean, professional finish that protects against abrasion, moisture, and short circuits — without the bulk.

Each roll is made from flexible polyolefin material with a 2:1 shrink ratio, meaning it shrinks to approximately half its original diameter when heat is applied. Available in diameters from φ3.5mm to φ6mm (≈0.14" to 0.24") and in roll lengths of 1M (≈3.3ft), 5M (≈16.4ft), 10M (≈32.8ft), and 20M (≈65.6ft). Choose from 13 colors including Black, White, Red, Green, Blue, Transparent, Yellow, Orange, Brown, Grey, Purple, Thin and Transparent, and Yellow & Green.

Ideal for wire splicing and insulation in automotive wiring harnesses, color-coding cables in home electrical panels, protecting solder joints on RC vehicles and hobby electronics, and bundling low-voltage wiring in marine or outdoor lighting installations.

🔌 Compatibility: Fits standard wire gauges and connectors with an outer diameter between φ3.5mm and φ6mm (pre-shrink). Shrinks to approximately half the listed diameter. Verify your wire OD before selecting a size.

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

  • 🔥2:1 Shrink Ratio — Shrinks to roughly half its original diameter, creating a snug, secure fit around wires, connectors, and terminals without gaps or looseness.
  • 🎨13 Color Options — Available in Black, White, Red, Green, Blue, Transparent, Yellow, Orange, Brown, Grey, Purple, Thin and Transparent, and Yellow & Green for easy color-coded wire identification.
  • ⚡Electrical Insulation — Polyolefin material provides reliable dielectric insulation for heat shrink wire repair, protecting exposed conductors from short circuits and accidental contact.
  • 🛡️Flame-Retardant Construction — Generally self-extinguishing formulation helps reduce fire risk in automotive, marine, and industrial wiring applications.
  • 📏Multiple Diameter & Length Options — Six diameters from φ3.5mm to φ6mm and four roll lengths from 1M to 20M let you match the exact coverage needed for small repairs or large-scale cable management projects.
  • 🌡️Low Activation Temperature — Typically activates around 90°C (194°F), making it compatible with standard heat guns for fast, even shrinking on polyolefin heat shrink sleeving applications.

📐 Technical Specifications — 2:1 Polyolefin Heat Shrink Tubing

Material Polyolefin
Shrink Ratio 2:1
Pre-Shrink Diameter Range φ3.5mm (≈0.14") — φ6mm (≈0.24")
Available Diameters φ3.5mm, φ4mm, φ4.5mm, φ5mm, φ5.5mm, φ6mm
Available Lengths 1M (≈3.3ft), 5M (≈16.4ft), 10M (≈32.8ft), 20M (≈65.6ft)
Available Colors Black, White, Red, Green, Blue, Transparent, Yellow, Orange, Brown, Grey, Purple, Thin and Transparent, Yellow & Green
Activation Temperature Typically ~90°C (194°F)
Full Shrink Temperature Typically ~120°C (248°F)
Flame Retardancy Generally flame-retardant (contact us to confirm specific rating)
Wall Thickness (post-shrink) See variant options
Operating Temperature Range Contact us to confirm
Application Wire insulation, cable bundling, connector protection, color coding
⚠️ Sizing tip: Always measure the outer diameter of your wire or connector before ordering. The listed diameter is the pre-shrink size. For a snug fit, choose a diameter that is slightly larger than your component's OD.

❓ Frequently Asked Questions

How do I choose the right diameter for my application?

Select a diameter that is slightly larger than the object you need to cover before shrinking. With a 2:1 shrink ratio, the tubing will shrink to approximately half its original diameter. For example, φ4mm tubing will shrink down to roughly 2mm. Measure your wire or connector at its widest point and choose the next size up for easy installation.

What lengths are available and how do I choose?

This tubing is available in 1M (≈3.3ft), 5M (≈16.4ft), 10M (≈32.8ft), and 20M (≈65.6ft) rolls. For occasional repairs, 1M is typically sufficient. For ongoing projects or workshop use, 5M–20M rolls offer better value per meter.

How strong is this heat shrink tubing?

Polyolefin heat shrink tubing generally provides good tensile strength and abrasion resistance for electrical insulation and wire bundling applications. It is not rated for structural load-bearing use. For specific tensile ratings, contact us to confirm.

Can this tubing be used outdoors or in wet environments?

Standard polyolefin heat shrink tubing is generally moisture-resistant and suitable for light outdoor use. However, it is not a waterproof adhesive-lined tube. For fully waterproof sealing, we recommend using adhesive-lined (3:1 or 4:1) heat shrink tubing instead.

What wire gauges or connector sizes is this compatible with?

This tubing is compatible with standard wire gauges and connectors that fall within the φ3.5mm–φ6mm pre-shrink diameter range. It works with most AWG and metric wire sizes in that range. Check your wire's outer diameter before selecting a size.

What temperature is needed to shrink this tubing?

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 recommended for even, controlled shrinking. Avoid open flames where possible to prevent uneven shrinkage or scorching.

Is this tubing flame-retardant?

Polyolefin heat shrink tubing is generally flame-retardant and self-extinguishing in most standard formulations. For applications requiring certified flame ratings (e.g., UL VW-1), please contact us to confirm the specific rating for this product.

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

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