Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation
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Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire InsulationHeat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation

Heat Shrink Tube — 2:1 Ratio Shrinkable Tubing for Wire Insulation

HomeDIYer
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By HomeDIYer®

Price:
$5.75 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Heat Shrink Tubing That Fits Every Wire — Reliable 2:1 Ratio Insulation Sleeves

Loose wire connections, exposed conductors, and unlabeled cable bundles are a headache for electricians, hobbyists, and automotive technicians alike. Whether you're repairing a frayed wire on a boat, organizing a home theater rack, or building a custom PCB harness, having the right heat shrink tubing on hand makes the job cleaner, safer, and more professional.

Each listing covers a single 1-meter (≈39.4") length of 2:1 ratio polyolefin heat shrink tubing. Diameters range from 0.6mm (3/128") up to 100mm (4"), available in 12 colors: Black, White, Red, Green, Yellow, Blue, Clear (Transparent), Brown, Orange, Purple, Gray, and Green/Yellow. The 2:1 shrink ratio means the tubing shrinks to approximately half its pre-shrink inner diameter when heat is applied — typically between 90°C–120°C (194°F–248°F).

Common use cases include wire insulation and strain relief on automotive wiring harnesses, color-coding terminal connections in electrical panels, protecting solder joints on marine and outdoor equipment, and bundling cables in DIY electronics and robotics projects — all scenarios where a clean, durable, and electrically insulating sleeve is essential.

🔌 Compatibility: Works with standard copper wire, stranded cable, terminals, connectors, and solder joints. Select a pre-shrink diameter at least 20% larger than your wire or bundle OD. Shrinks to approximately 50% of listed diameter. Suitable for 12V–600V applications — confirm voltage rating for your specific use case.
⚠️ Size tip: If you are unsure which diameter to order, measure the outer diameter of your wire or connector with calipers before selecting a variant. Contact us to confirm fit for unusual connector shapes or very large cable bundles.

✅ Key Features of These Heat Shrink Tubing Sleeves

  • 📐Wide Diameter Range — Available from 0.6mm (3/128") to 100mm (4"), covering everything from fine gauge wire insulation to large cable bundle protection in a single product line.
  • 🎨12-Color Selection — Choose from Black, White, Red, Green, Yellow, Blue, Clear, Brown, Orange, Purple, Gray, and Green/Yellow for color-coded wire identification that meets common wiring standards.
  • 🔥2:1 Shrink Ratio — Shrinks to approximately half its original inner diameter when heated to 90°C–120°C (194°F–248°F), creating a snug, uniform sleeve around wires, terminals, and connectors.
  • ⚡Electrical Insulation — Polyolefin construction provides reliable dielectric insulation, protecting against short circuits, abrasion, and moisture ingress on exposed conductors and solder joints.
  • ✂️Cut-to-Length Flexibility — Each piece is 1 meter (≈39.4") long, so you can cut exactly the length you need for each connection — no waste, no guessing.
  • 🔧Broad Application Compatibility — Suitable for automotive wiring repair, marine cable protection, electronics assembly, panel wiring, and DIY home electrical projects where a clean, professional finish is required.

📐 Technical Specifications — Heat Shrink Tubing

Product Type Polyolefin Heat Shrink Tubing
Shrink Ratio 2:1
Available Diameters 0.6mm (3/128") · 0.8mm (1/32") · 1mm (3/64") · 1.5mm (1/16") · 2mm (5/64") · 2.5mm (3/32") · 3mm (1/8") · 3.5mm (9/64") · 5mm (1/5") · 6mm (1/4") · 9mm · 10mm (3/8") · 12mm (1/2") · 16mm (5/8") · 20mm (3/4") · 25mm (1") · 30mm (1.25") · 40mm (1.5") · 50mm (2") · 60mm (2.5") · 70mm · 80mm (3") · 90mm · 100mm (4")
Available Colors Black, White, Red, Green, Yellow, Blue, Clear (Transparent), Brown, Orange, Purple, Gray, Green/Yellow
Length per Piece 1m (≈39.4")
Activation Temperature Typically 90°C–120°C (194°F–248°F)
Material Polyolefin (generally RoHS compliant — contact us to confirm)
Wall Thickness (post-shrink) See variant options
Voltage Rating Contact us to confirm for your application
Recommended Tool Heat gun (lighter acceptable for small sizes)
Minimum Bend Radius See variant options

❓ Frequently Asked Questions

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

Select a pre-shrink diameter that is at least 20% larger than the outer diameter of the wire, connector, or bundle you need to cover. For example, if your wire bundle measures 8mm across, choose the 9mm or 10mm (3/8") size. After applying heat, the tubing will shrink to approximately half its original inner diameter at a 2:1 ratio — so a 10mm tube will typically close down to around 5mm.

What temperature is needed to shrink this tubing?

This heat shrink tubing generally activates between 90°C–120°C (194°F–248°F). A heat gun is the recommended tool for even, controlled shrinkage. Move the heat source steadily along the tubing to avoid hot spots. A lighter can work for small diameters in a pinch, but may cause uneven shrinkage or surface scorching.

Can this tubing be used outdoors or in wet environments?

Once properly shrunk, this tubing provides a moisture-resistant barrier suitable for most indoor and protected outdoor applications. For fully waterproof or submersible installations, or prolonged UV exposure, we recommend contacting us to confirm suitability — adhesive-lined heat shrink variants offer a stronger environmental seal for those conditions.

What does the 2:1 shrink ratio mean in practice?

A 2:1 shrink ratio means the tubing shrinks to approximately half its original inner diameter when heat is applied. For example, a 10mm (3/8") tube will close down to roughly 5mm after shrinking. This is the most common ratio for general-purpose wire insulation, cable bundling, and connector protection.

Is this tubing compatible with standard electrical wire gauges?

Yes. The available diameter range — from 0.6mm (3/128") up to 100mm (4") — covers most standard wire gauges from AWG 30 down to large multi-conductor cable bundles. Always select the size based on the measured outer diameter of your wire or connector rather than the AWG number alone, as insulation thickness varies by wire type.

What material is this tubing made from, and is it RoHS compliant?

This heat shrink tubing is generally made from polyolefin, a material valued for its flexibility, electrical insulation properties, and resistance to chemicals and abrasion. Polyolefin heat shrink is typically RoHS compliant. Contact us if you need compliance documentation for a specific application or procurement requirement.

Can I use these sleeves for color-coding wires in a panel or harness?

Absolutely. With 12 available colors — Black, White, Red, Green, Yellow, Blue, Clear, Brown, Orange, Purple, Gray, and Green/Yellow — this tubing is well-suited for color-coding wire harnesses, circuit boards, and electrical panels. The Green/Yellow variant is commonly used for ground/earth conductors in accordance with IEC wiring color standards.

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

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