2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors
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2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors

2:1 Heat Shrink Tubing — Electrical Wire Wrap & Cable Sleeving, Multiple Sizes & Colors

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Beschreibung

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

Whether you're chasing an electrical fault under the hood, splicing trailer wiring in the rain, or tidying up a home electronics project, exposed wire connections are a liability. Loose solder joints corrode, bare conductors short, and unprotected splices fail at the worst possible moment. This 2:1 heat shrink tubing gives hobbyists, auto technicians, and DIY builders a fast, clean way to seal and protect wire connections of all sizes.

Each listing covers 1 meter of tubing per order, available in unshrunk diameters from 0.6mm (≈0.024") up to 50mm (≈1.97"), and in seven colors: Black, White, Red, Green, Yellow, Blue, and Transparent. The 2:1 shrink ratio means the tube shrinks to half its original diameter when heat is applied, conforming tightly around connectors, solder joints, wire bundles, and terminals. Material is polyolefin — flexible, flame-retardant, and resistant to moisture and common chemicals.

Typical use cases include automotive wire harness repair and color-coding, marine wiring protection against moisture ingress, strain relief on USB and charging cables, and insulating soldered connections in electronics projects. The wide diameter range makes this a single-source solution for everything from fine gauge sensor wires to large battery cables.

ℹ️ Compatibility Note: Diameter listed is the unshrunk (expanded) inner diameter. After heating, the tube shrinks to approximately 50% of the listed size. Choose a size at least 20% larger than the widest point of your wire or connector for a secure fit.

✅ Key Features of These 2:1 Heat Shrink Tubes

  • 🔥2:1 Shrink Ratio — Shrinks to half its original diameter, creating a tight, uniform seal around wire splices, terminals, and connectors without gaps or wrinkles.
  • 🎨7 Color Options — Available in Black, White, Red, Green, Yellow, Blue, and Transparent for color-coded wire identification in automotive wiring, panel builds, and electronics repairs.
  • 📏Wide Size Range — Unshrunk diameters from 0.6mm to 50mm cover everything from fine sensor wires to large battery cables, eliminating the need for multiple product sources.
  • 🛡️Polyolefin Construction — Flame-retardant, moisture-resistant material holds up in automotive engine bays, marine environments, and outdoor electrical enclosures.
  • ✂️Easy to Cut and Apply — Cuts cleanly with scissors or a utility knife; shrinks evenly with a standard heat gun, making it practical for field repairs and bench work alike.
  • ⚡Electrical Insulation — Provides dielectric protection for soldered joints and wire splices, generally rated up to 600V for low-voltage automotive and household wiring applications.

📐 Technical Specifications — 2:1 Heat Shrink Tubing

Product Type 2:1 Ratio Heat Shrink Tubing
Material Polyolefin (flame-retardant)
Shrink Ratio 2:1 (shrinks to ~50% of unshrunk diameter)
Diameter (Unshrunk) 0.6mm (≈0.024") — 50mm (≈1.97"); see variant options
Length per Unit 1 m (≈39.4")
Available Colors Black, White, Red, Green, Yellow, Blue, Transparent
Shrink Temperature Typically 70–120°C (158–248°F)
Voltage Rating Generally up to 600V (low-voltage applications)
Longitudinal Shrinkage Typically 5–10% in length when heated
Application Tool Heat gun recommended; lighter acceptable for small sizes
Typical Use Wire insulation, splice protection, cable bundling, strain relief
Operating Temperature Contact us to confirm for specific size
⚠️ Sizing Tip: Always measure the widest point of your connector or wire bundle before selecting a diameter. The unshrunk diameter should be at least 20–30% larger than your measurement to ensure the tube slides on easily before shrinking.

❓ Frequently Asked Questions

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

Select a diameter (unshrunk) that is at least 20–30% larger than the widest point of the object you need to cover. For example, to cover a 4mm connector, choose a 5mm or 6mm unshrunk tube. After shrinking at 2:1 ratio, the tube will tighten snugly around the object. When in doubt, size up — you can always apply more heat, but you cannot reverse over-shrinkage.

Quick reference: 1 inch ≈ 25.4mm. So a 1/4" wire (≈6.35mm) would typically use an 8mm or 9mm unshrunk tube.

What temperature is needed to shrink this tubing?

This tubing generally requires a temperature of around 70–120°C (158–248°F) to begin shrinking. A heat gun is the recommended tool. A lighter or match can work in a pinch but may cause uneven shrinkage or scorching. Avoid direct flame contact with the tubing surface.

Is this heat shrink tubing suitable for outdoor or automotive use?

Yes, in most cases. This tubing is typically made from polyolefin, which offers good resistance to moisture, UV exposure, and common automotive fluids. For harsh marine or high-vibration environments, confirm the specific material rating before use. It is generally suitable for engine bay wire repairs, trailer wiring, and outdoor junction protection.

What is the voltage rating of this tubing?

Polyolefin 2:1 heat shrink tubing generally carries a voltage rating of up to 600V. This makes it suitable for most low-voltage automotive, marine, and household wiring applications. For high-voltage industrial use, please contact us to confirm the exact rating for your selected size.

Can I use this tubing to bundle multiple wires together?

Yes. Heat shrink tubing is commonly used to bundle and organize wire harnesses. Choose a diameter large enough to fit all wires loosely before shrinking. For bundling, the larger sizes (10mm and above) are typically used. This keeps wiring neat and protected from abrasion.

Does the color of the tubing affect its performance?

No — color is purely for identification and organization purposes. All color variants share the same electrical and mechanical properties. Using color-coded tubing is a common practice in automotive and electrical work to identify wire functions (e.g., red for positive, black for ground, yellow for signal).

How much does the tubing shrink in length when heated?

In addition to radial shrinkage, heat shrink tubing typically shrinks 5–10% in length when heated. Cut your pieces slightly longer than needed to account for this. For example, if you need 50mm (≈2") of coverage, cut approximately 55mm (≈2.2") of tubing before applying heat.

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

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