2:1 Heat Shrink Tubing – PVC Cable Sleeve, 7–95mm Width, 300V 105°C, 20 Colors

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Beschreibung

 

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

Loose wire splices, exposed terminals, and unprotected cable bundles are a constant headache for electricians, automotive technicians, and DIY enthusiasts. Whether you're rewiring a vehicle harness, repairing electronics, or organizing a panel, having the right 2:1 heat shrink tubing on hand makes the difference between a clean, lasting repair and one that fails under vibration or moisture.

Each piece is sold as a 1-meter (≈39.4") length of PVC heat shrink tubing, available in widths from 7mm (≈0.28") to 95mm (≈3.74") and in 20 colors including Black, White, Clear, Red, Blue, Green, Yellow, and more. The 2:1 shrink ratio means the tubing shrinks to approximately half its original diameter when heat is applied. Rated at 300V and 105°C (221°F), it suits a wide range of low-voltage wiring and cable management tasks.

Typical use cases include automotive wire harness repair, terminal and connector insulation, color-coded cable identification, strain relief on PCB leads, and bundling multi-conductor cables in control panels. The wide size range — from 7mm up to 95mm — covers everything from individual 22 AWG wires to large conduit bundles.

ℹ️ Compatibility Note: This tubing is designed for standard copper and aluminum conductors, terminals, and connectors. Verify the pre-shrink diameter is at least 20% larger than your wire or bundle OD before ordering. For adhesive-lined waterproof sealing, see our dual-wall heat shrink range.

✅ Key Features of These 2:1 Heat Shrink Tubes

  • 🔥2:1 Shrink Ratio — Shrinks to approximately half its original diameter, providing a snug, uniform fit over wire splices, terminals, and cable bundles without gaps or loose ends.
  • 300V / 105°C Rated — Suitable for low-voltage automotive, marine, and electronics wiring where reliable electrical insulation and heat resistance are required.
  • 📏Wide Size Range (7–95mm) — Covers individual 22 AWG wires up to large multi-conductor bundles, so one product line handles most heat shrink tubing for wire insulation needs across your shop or toolbox.
  • 🎨20 Color Options — Black, White, Clear, Red, Blue, Green, Yellow, and more allow color-coded cable identification in automotive harnesses, control panels, and DIY electronics projects.
  • ✂️Cut-to-Length Flexibility — Each 1-meter piece can be trimmed to any shorter length with scissors or a utility knife, reducing waste and making it practical for both small connector repairs and longer cable runs.
  • 🛡️Abrasion & Moisture Resistance — PVC construction provides a protective outer layer that resists light abrasion, dust, and incidental moisture, helping extend the service life of repaired connections in automotive and indoor electrical applications.

📐 Technical Specifications — PVC 2:1 Heat Shrink Tubing

Material PVC (Polyvinyl Chloride)
Shrink Ratio 2:1
Available Widths (Pre-Shrink) 7mm, 9mm, 12mm, 15mm, 17mm, 18.5mm, 23mm, 27mm, 29.5mm, 31mm, 36mm, 40mm, 43mm, 45mm, 50mm, 55mm, 60mm, 66mm, 70mm, 75mm, 78mm, 80mm, 83mm, 85mm, 91mm, 95mm
Length per Piece 1 meter (≈39.4")
Voltage Rating 300V
Temperature Rating 105°C (221°F)
Activation Temperature Typically 70–90°C (158–194°F)
Colors Available Black, Blue, Clear, White, Green, Yellow, Red, Coffee, Orange, Light Green, Orange Red, Grey, Purple, Pink, Clear Yellow, Dark Green, Sky Blue, Cyan, Gold, Clear Blue
Suitable Applications Wire insulation, terminal protection, cable bundling, strain relief, color coding
Waterproof Light moisture resistance only — not adhesive-lined; contact us to confirm for submersion use
Country of Origin See variant options
⚠️ Sizing Tip: Always measure your wire or bundle outer diameter before selecting a width. The pre-shrink diameter should be at least 20–30% larger than the object being covered to ensure a tight fit after shrinking.

❓ Frequently Asked Questions

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

Measure the outer diameter of the wire or bundle you need to cover. Choose a tubing width that is typically 20–30% larger than that diameter before shrinking. For example, if your wire bundle is 10mm (≈0.39") across, a 12mm (≈0.47") or 15mm (≈0.59") tube generally provides a secure fit after shrinking. This product shrinks at a 2:1 ratio, so a 20mm tube will shrink down to approximately 10mm.

What does the 2:1 shrink ratio mean?

A 2:1 shrink ratio means the tubing will shrink to approximately half its original diameter when heat is applied. For example, a 40mm (≈1.57") tube will shrink down to roughly 20mm (≈0.79"). This ratio is suitable for most standard wire insulation and bundling applications.

What temperature is needed to shrink this tubing?

This tubing is generally activated at temperatures starting around 70–90°C (158–194°F). A heat gun set to low or medium is typically sufficient. Avoid open flames, which can cause uneven shrinking or damage the tubing material.

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

This PVC tubing provides basic moisture and abrasion resistance suitable for indoor and light-duty applications. For fully waterproof or submersion-rated applications, an adhesive-lined (dual-wall) heat shrink tubing is generally recommended instead. If you're unsure, contact us to confirm suitability for your specific environment.

What is the voltage and temperature rating?

This tubing is rated at 300V and 105°C (221°F), making it suitable for most low-voltage wiring, automotive, and electronics applications. For high-voltage industrial use, please confirm your specific requirements before ordering.

Can I cut this tubing to a custom length?

Yes. Each piece is sold as a 1-meter (≈39.4") length and can be cut to any shorter length with standard scissors or a utility knife before or after shrinking. This makes it easy to use for both short connector repairs and longer cable runs without waste.

What materials and wire types is this tubing compatible with?

This PVC heat shrink tubing is compatible with copper wire, aluminum wire, fiber optic cables, and most standard insulated conductors. It is generally used for wire splicing, terminal insulation, cable bundling, and strain relief in automotive, marine, and electronics projects.

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

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