Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm
Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm
Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm
Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm
Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm
Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm
Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm
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Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mmHeat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mmHeat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mmHeat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mmHeat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mmHeat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mmHeat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm

Heat Shrink Tubing 2:1 Ratio — Waterproof Wire Sleeving, φ0.6mm–φ80mm

HomeDIYer
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By HomeDIYer®

Price:
$2.05 USD
Stock:
In stock (500 units), ready to be shipped

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Description

 

Heat Shrink Tubing 2:1 Ratio — Reliable Waterproof Wire Protection for Every Project

Whether you're a professional electrician, an automotive technician, or a hands-on DIYer, loose wire splices and exposed connections are a constant headache. Moisture, abrasion, and vibration can degrade unprotected wiring fast — leading to shorts, corrosion, and costly repairs down the line.

This heat shrink tubing features a 2:1 shrink ratio and is available in diameters from φ0.6mm (≈0.024") to φ80mm (≈3.15"), with lengths from 1M (≈3.3 ft) to 50M (≈164 ft). Made from polyolefin, it delivers a snug, protective sleeve over wire joints, terminals, and connectors once heat is applied. Each listing is sold by the meter in your chosen diameter and length combination.

Typical use cases include automotive wiring harness repair, marine electrical connections, home appliance wire bundling, and workshop cable management — all situations where a clean, insulated, waterproof-resistant finish is essential for long-term reliability.

🔌 Compatibility: Fits standard wire gauges and terminals. Diameter range φ0.6mm–φ80mm covers AWG 30 down to large multi-conductor bundles. Confirm your wire OD before selecting a size — tubing should be 20–30% larger than the wire OD before shrinking.
⚠️ Size Note: Sizes listed are the before-shrink inner diameter. After applying heat, the tubing shrinks to approximately half that diameter. If you are unsure which size fits your application, please contact us to confirm.

✅ Key Features of These Heat Shrink Tubing Sleeves

  • 🔥2:1 Shrink Ratio — Shrinks to half its original diameter when heat is applied, creating a tight, form-fitting seal around wires, terminals, and connectors for secure insulation.
  • 💧Moisture-Resistant Barrier — Forms a water-resistant sleeve that helps protect wire splices and solder joints from humidity, condensation, and light moisture exposure in automotive and outdoor wiring repairs.
  • 📏Wide Diameter Range — Available from φ0.6mm (≈0.024") to φ80mm (≈3.15"), covering everything from fine instrument wiring to large cable bundles, so you can find the right fit without compromise.
  • 🔒Flame-Retardant Polyolefin Material — Constructed from polyolefin, which is generally self-extinguishing and resistant to chemicals, oils, and UV exposure — a practical choice for heat shrink wire wrap in demanding environments.
  • ✂️Cut-to-Length Flexibility — Sold in lengths from 1M to 50M, each piece can be trimmed to any custom length with scissors or a utility knife, reducing waste and fitting your exact project needs.
  • ⚡Electrical Insulation — Provides a dielectric insulating layer over wire connections, typically rated for use in low-to-medium voltage applications — suitable for DIY electronics, appliance repair, and waterproof wire sleeving projects.

📐 Technical Specifications — Heat Shrink Tubing 2:1 Ratio

Product Type Heat Shrink Tubing / Heatshrink Sleeving
Shrink Ratio 2:1
Material Polyolefin
Diameter Range (Before Shrink) φ0.6mm (≈0.024") — φ80mm (≈3.15")
Available Lengths 1M (≈3.3 ft), 3M (≈9.8 ft), 5M (≈16.4 ft), 10M (≈32.8 ft), 20M (≈65.6 ft), 30M (≈98.4 ft), 50M (≈164 ft)
Shrink Temperature Typically 70–120°C (158–248°F)
Voltage Rating Typically up to 600V — Contact us to confirm
Flame Retardancy Generally flame-retardant (polyolefin)
Color See variant options
Application Tool Heat gun recommended
Sold As Per meter (continuous length per variant)

❓ Frequently Asked Questions

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

Measure the outer diameter (OD) of the wire, connector, or bundle you need to cover. Select a tubing size that is typically 20–30% larger than that OD before shrinking. With a 2:1 ratio, the tubing shrinks to approximately half its listed diameter. For example, φ6mm (≈1/4") tubing will shrink down to roughly φ3mm (≈1/8"). When in doubt, size up — you can always apply more heat to tighten the fit.

What does 2:1 shrink ratio mean?

A 2:1 ratio means the tubing will shrink to half its original inner diameter when heat is applied. For example, φ10mm (≈3/8") tubing will shrink down to approximately φ5mm (≈3/16"). This ratio is the most common for general-purpose wire insulation and waterproof wire sleeving applications.

Is this heat shrink tubing waterproof?

This tubing is generally moisture-resistant and provides a water-resistant seal around wire connections when properly shrunk. It is suitable for most automotive, outdoor, and marine wiring applications. For fully submersed or high-pressure water exposure, we recommend contacting us to confirm suitability before purchase.

Can I use this tubing outdoors or in automotive applications?

Yes. This heat shrink sleeving is commonly used in automotive wiring harness repair, marine electrical connections, and outdoor installations. Polyolefin is generally resistant to UV exposure, oils, and chemicals, making it a practical choice for exposed environments. Always confirm the specific operating temperature range for your application.

What tool do I need to shrink the tubing?

A heat gun is the recommended tool for even, controlled shrinkage. In most cases, a temperature of around 70–120°C (158–248°F) is sufficient. For small diameters, a lighter can work in a pinch, but a heat gun provides more uniform results and reduces the risk of scorching the tubing or underlying wire insulation.

What is the voltage rating of this heat shrink tubing?

Standard polyolefin heat shrink tubing of this type is typically rated for use up to 600V. Please contact us to confirm the exact voltage rating for your specific size and application before use in high-voltage environments.

Can I cut the tubing to a custom length?

Yes. All lengths are sold as continuous pieces that you can trim to any size with scissors or a utility knife. Buying a longer roll (10M, 20M, or 50M) is generally more cost-effective if you have multiple connections to cover across a project.

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

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