7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths
Roll over image to zoom in Click on image to zoom
7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths

7mm Heat Shrink Tubing – 2:1 Ratio, Assorted Colors, 1–10 Meter Lengths

HomeDIYer
No reviews

By HomeDIYer®

Price:
$1.35 USD
Stock:
In stock (500 units), ready to be shipped

Payment & Security

Ach Direct Debit Amazon American Express Apple Pay Bancontact Diners Club Discover Google Pay iDEAL Wero Mastercard PayPal Shop Pay USDC Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Quantity Discount Promotion
🎯 BULK DISCOUNT: Buy More, Save More!
Buy 2 Items
5% OFF
Buy 4 Items
10% OFF
Buy 6 Items
15% OFF
✅ Auto-discount • 🔄 Mix & match
Expert

DIY Expert Support

Get fitment advice & recommendations

Mon-Fri, 8:30AM-8PM
WhatsApp WhatsApp Email
⚡
24-Hour Fast Ship
🚚
Arrives in 3-14 days
🌍
Global Reach
↩️
30-Day Returns
🌱 1 tree planted with every purchase

Description

7mm Heat Shrink Tubing — Reliable Wire Protection in 7 Colors & 4 Lengths

Whether you're rewiring a car stereo, repairing trailer lights, or organizing a home electrical panel, exposed wire splices and bare connectors are a constant hazard. Moisture, vibration, and abrasion can degrade connections over time — leading to shorts, corrosion, and failed circuits. This 7mm heat shrink tubing gives DIYers, hobbyists, and automotive technicians a fast, clean way to seal and protect wire joints without tape that unravels or connectors that corrode.

Each order is a single continuous length of polyolefin heat shrink tubing with a 7mm (≈9/32") inner diameter before shrinking and a 2:1 shrink ratio — meaning it shrinks down to approximately 3.5mm (≈9/64") when heat is applied. Available in lengths of 1 Metre (≈3.3 ft), 2 Metre (≈6.6 ft), 5 Metre (≈16.4 ft), and 10 Metre (≈32.8 ft), and in seven colors: Black, White, Red, Green, Yellow, Blue, and Transparent.

Typical use cases include automotive wiring harness repair, marine and trailer wiring protection, color-coded circuit identification in home electrical projects, and strain relief on DIY electronics builds. The transparent option is especially useful when you need to inspect the connection underneath without removing the sleeve.

🔌 Compatibility: Fits wire bundles and conductors with an outer diameter up to approximately 6.5mm. Suitable for AWG 8–14 wire gauges (varies by insulation thickness). Works with standard heat guns, and is compatible with automotive, marine, and general electrical wiring applications.

✅ Key Features of These 7mm Heat Shrink Tubing Sleeves

  • 🔥2:1 Shrink Ratio — Shrinks from 7mm down to approximately 3.5mm for a firm, form-fitting seal around wire splices and connectors, eliminating gaps that allow moisture ingress.
  • 🎨7 Color Options — Black, White, Red, Green, Yellow, Blue, and Transparent allow color-coded wire identification across automotive, marine, and DIY electrical wiring projects.
  • 📏Flexible Length Selection — Choose from 1m, 2m, 5m, or 10m to match your project scale, from a single splice repair to a full wiring harness installation.
  • 🛡️Moisture & Abrasion Resistance — Polyolefin construction provides a protective barrier against water, road grime, and mechanical wear — extending the service life of wire connections in harsh environments.
  • 👁️Transparent Option Available — The clear variant lets you visually inspect the underlying connection or label without cutting the sleeve — useful for quality control in electronics assembly.
  • ⚡Broad Application Range — Suitable for car electrical repair, trailer wiring, marine wiring protection, RC hobby builds, and general cable wire wrap tasks where a clean, durable finish is needed.

📐 Technical Specifications — 7mm Polyolefin Heat Shrink Tubing

Inner Diameter (Before Shrink) 7mm (≈9/32")
Inner Diameter (After Shrink) Approximately 3.5mm (≈9/64")
Shrink Ratio 2:1
Material Polyolefin
Available Colors Black, White, Red, Green, Yellow, Blue, Transparent
Available Lengths 1m (≈3.3 ft), 2m (≈6.6 ft), 5m (≈16.4 ft), 10m (≈32.8 ft)
Shrink Temperature Typically begins at ~90°C (194°F); full recovery at ~120°C (248°F)
Compatible Wire Gauges Generally AWG 8–14 (varies by insulation OD; measure before ordering)
Recommended Application Tool Heat gun (lighter suitable for small sections)
Typical Applications Automotive wiring, marine wiring, trailer wiring, electronics, DIY electrical
Wall Thickness (After Shrink) See variant options / Contact us to confirm
Operating Temperature Range Contact us to confirm for your specific application
⚠️ Before ordering: Measure the outer diameter of your wire or bundle to confirm fit. The 7mm inner diameter accommodates conductors up to approximately 6.5mm OD. If you need a different diameter, please browse our other heat shrink tubing sizes.

❓ Frequently Asked Questions

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

Measure the total length of wire or splice you need to cover, then add at least 10–15% extra for overlap and trimming. For example, if you need to cover 90cm (≈35.4") of wiring, a 1 Metre length is typically sufficient. For larger wiring harness projects, the 5 Metre or 10 Metre options generally offer better value per meter.

What does 2:1 shrink ratio mean?

A 2:1 shrink ratio means the tubing will shrink to approximately half its original inner diameter when heat is applied. This 7mm tubing will typically shrink down to around 3.5mm (≈9/64"), creating a snug, protective sleeve around the wire or connector.

What wire sizes does 7mm heat shrink tubing fit?

7mm inner diameter tubing generally fits wire bundles or individual conductors with an outer diameter up to approximately 6.5mm before shrinking. This typically covers wire gauges in the range of AWG 8–14, though the exact fit depends on insulation thickness. Always measure your wire's outer diameter before ordering.

Can this heat shrink tubing be used outdoors or in automotive applications?

Yes. Polyolefin heat shrink tubing is generally resistant to moisture, UV exposure, and common automotive fluids, making it suitable for outdoor wiring, engine bay repairs, trailer wiring, and marine applications. For extreme chemical exposure environments, confirm compatibility with your specific fluids before use.

What tool do I use to shrink the tubing?

A heat gun is the recommended tool for even, controlled shrinking. In a pinch, a lighter or match can work for small sections, but a heat gun provides more consistent results and reduces the risk of scorching. Most polyolefin tubing begins to shrink at around 90°C (194°F) and fully recovers by approximately 120°C (248°F).

Why are there different colors available?

Color-coding is a standard practice in electrical work to identify circuits, polarity, or wire function at a glance. For example, red is commonly used for positive leads, black for ground, and other colors for signal or auxiliary circuits. Having multiple colors in one order simplifies wiring harness organization and troubleshooting.

Is this tubing RoHS compliant and safe for use in electronics?

Polyolefin heat shrink tubing is generally manufactured to meet RoHS guidelines, meaning it is free from restricted hazardous substances. It is widely used in consumer electronics, automotive wiring, and DIY electrical projects. If your application requires a specific certification, please contact us to confirm.

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

You may also like

Recently viewed