Brown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire Sleeving
Brown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire Sleeving
Brown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire Sleeving
Brown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire Sleeving
Brown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire Sleeving
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Brown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire SleevingBrown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire SleevingBrown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire SleevingBrown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire SleevingBrown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire Sleeving

Brown Heat Shrink Tubing 2:1 — φ1mm to φ50mm, Electrical Wire Sleeving

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Brown Heat Shrink Tubing 2:1 — Reliable Electrical Wire Insulation from φ1mm to φ50mm

Whether you're repairing automotive wiring, organizing a home electrical panel, or protecting exposed cable ends on a DIY project, finding heat shrink tubing that fits every wire in your kit — without ordering from five different listings — is a real time sink. This brown 2:1 heat shrink tubing is designed for hobbyists, electricians, and makers who need a single, dependable sleeving solution across a broad range of wire sizes.

Each order is a continuous length of flame-retardant polyolefin heat shrink tubing, available in 20 diameters from φ1mm (≈0.04") to φ50mm (≈1.97"), and in cut lengths of 1M (≈3.3 ft), 2M (≈6.6 ft), 5M (≈16.4 ft), 10M (≈32.8 ft), and 20M (≈65.6 ft). The 2:1 shrink ratio means the tubing recovers to approximately half its expanded inner diameter when heat is applied — giving you a snug, uniform fit over wires, connectors, and cable bundles.

Typical use cases include automotive wire harness repair, marine and RV electrical bundling, workshop tool cord management, and prototyping bench wiring. The brown color is especially useful for color-coded wiring systems, earth/ground identification in European-style installations, and low-visibility cable runs in wood or leather-toned assemblies.

ℹ️ Compatibility Note: This tubing uses a standard 2:1 shrink ratio and is compatible with most polyolefin-compatible heat guns. It is not adhesive-lined — for waterproof sealing, please see our adhesive-lined heat shrink range. Verify your wire's outer diameter against the expanded inner diameter of your chosen size before ordering.

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

  • 🔥2:1 Shrink Ratio — Recovers to approximately half its expanded diameter, delivering a firm, uniform grip on wires, terminals, and cable bundles without over-compression.
  • 📏20 Diameter Options — Covers φ1mm through φ50mm in a single product line, so you can match the right size to thin signal wires, mid-gauge automotive cables, or large conduit ends.
  • 🛡️Flame-Retardant Polyolefin — Made from self-extinguishing polyolefin material, reducing fire propagation risk in enclosed wiring environments such as junction boxes and vehicle dashboards.
  • ✂️Cut-to-Length Flexibility — Available in 1M, 2M, 5M, 10M, and 20M continuous rolls; cut to any length with scissors before shrinking for zero waste on short repair jobs or bulk wiring runs.
  • 🎨Brown Color for Coded Wiring — Consistent brown pigmentation supports color-coded electrical systems, ground/earth identification in IEC-standard installations, and discreet cable routing in wood-toned or leather assemblies.
  • ⚡Broad Electrical Insulation Coverage — Provides dielectric insulation over solder joints, crimp connectors, and bare wire ends, helping prevent short circuits in automotive, marine, and household electrical repair applications.

📐 Technical Specifications — Brown Heat Shrink Tubing

Material Flame-retardant polyolefin
Color Brown
Shrink Ratio 2:1
Diameter Range (Expanded) φ1mm – φ50mm (≈0.04" – ≈1.97")
Available Lengths 1M (≈3.3 ft), 2M (≈6.6 ft), 5M (≈16.4 ft), 10M (≈32.8 ft), 20M (≈65.6 ft)
Activation Temperature Typically 70–90°C (158–194°F)
Full Recovery Temperature Typically ~120°C (248°F)
Continuous Operating Temperature Typically up to 125°C (257°F)
Wall Thickness (pre-shrink) See variant options
Adhesive Lined No — standard (non-adhesive) tubing
Flame Retardancy Self-extinguishing polyolefin (contact us to confirm specific rating)
RoHS Compliance Generally compliant — contact us to confirm documentation
Recommended Tool Heat gun (low to medium setting); avoid open flame
Typical Applications Wire insulation, connector sealing, cable bundling, harness repair
⚠️ Sizing Tip: Always measure your wire or connector's outer diameter before selecting a size. The expanded inner diameter of the tubing should be at least 10–20% larger than your cable OD to allow easy insertion. After shrinking, the recovered diameter will be approximately half the expanded size.

❓ Frequently Asked Questions

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

Measure the outer diameter of the wire or connector before shrinking. Choose a tube whose expanded (pre-shrink) inner diameter is at least 10–20% larger than your cable. With a 2:1 ratio, the recovered diameter will be roughly half the expanded size. For example, a φ6mm tube recovers to approximately φ3mm (≈1/8"). When in doubt, size up one step.

What shrink ratio does this tubing use, and what does that mean?

This tubing uses a 2:1 shrink ratio, meaning it will shrink to approximately half its original expanded diameter when heat is applied. For example, a φ10mm (≈3/8") tube will recover to roughly φ5mm (≈3/16"). This ratio is generally suitable for most standard wire insulation and bundling tasks.

What temperature is needed to shrink this tubing?

Polyolefin heat shrink tubing typically activates 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 recommended. Avoid applying an open flame directly to the tubing, as this can cause uneven shrinkage or surface scorching.

Is this heat shrink tubing suitable for outdoor or wet environments?

Standard polyolefin 2:1 tubing generally provides basic moisture resistance and is suitable for light outdoor use. However, it is not waterproof and does not contain an adhesive inner lining. For fully weatherproof or submersible applications, adhesive-lined (3:1 or 4:1) heat shrink tubing is typically recommended. Contact us to confirm suitability for your specific environment.

Is this tubing flame-retardant and RoHS compliant?

This heat shrink tubing is made from flame-retardant polyolefin and is generally manufactured to meet RoHS compliance standards. It is typically rated for continuous use up to 125°C (257°F). Please contact us if you require specific certification documentation for your project or application.

Can I cut this tubing to a custom length?

Yes. The tubing is sold in continuous lengths of 1M, 2M, 5M, 10M, and 20M, and can be cut to any length with scissors or a utility knife before applying heat. Longer lengths offer better per-meter value for larger projects or bulk wiring jobs. The tubing does not fray or unravel when cut.

What wire gauges or connector types is this compatible with?

The φ1mm–φ50mm size range covers a wide variety of wire gauges and connector types. Smaller diameters (φ1mm–φ4mm) are typically suited for thin signal wires and small connectors. Mid-range sizes (φ5mm–φ16mm) work well for standard automotive and household wiring. Larger sizes (φ20mm–φ50mm) are generally used for cable bundles, conduit ends, and industrial connectors. See variant options for exact sizing.

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

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