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Heat Shrink Tubing Kit – Wire Insulation Sleeves | DIY & Auto
Heat Shrink Tubing Kit – Wire Insulation Sleeves | DIY & Auto
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Heat Shrink Tubing Kit – Reliable Wire Insulation for Every Project
Keep your wiring neat, protected, and professional with this versatile Heat Shrink Tubing Kit. Made from high-quality crosslinked polyethylene (PE), these insulation sleeves shrink snugly around wires, cables, and connectors when heat is applied — creating a secure, moisture-resistant, and flame-retardant barrier. Whether you're working on automotive wiring, electronics repair, or DIY home projects, this kit has you covered with a wide range of sizes and colours.
Key Features
- 2:1 Shrink Ratio – Shrinks to half its original diameter for a tight, custom fit on wires of varying thickness
- Flame Retardant – Meets safety standards to resist ignition and slow the spread of flame
- Wide Temperature Range – Operates reliably from -55°C to +125°C (-67°F to +257°F)
- High Dielectric Strength – 15 KV dielectric strength provides excellent electrical insulation
- Durable Construction – Tensile strength of 10.4 MPa resists tearing and mechanical stress
- Easy to Cut & Apply – Simply trim to length with scissors or a sharp knife, position over wire, and apply heat with a heat gun or lighter
- Multi-Colour & Black Options – Available in colourful assortments for easy wire identification or all-black for a clean, professional look
- Bulk Quantities Available – Choose from bag packs (127–560 pcs) or box packs (328–800 pcs) to suit any project scale
Specifications
| Material | PE / Crosslinked Polyethylene |
| Shrinkage Ratio | 2:1 |
| Minimum Shrink Temp | ≥84°C (183°F) |
| Full Shrink Temp | ≥120°C (248°F) |
| Operating Temperature | -55°C to +125°C |
| Tensile Strength | 10.4 MPa |
| Dielectric Strength | 15 KV |
| Flame Rating | Flame Retardant |
| Colours | Multicolour Assortment / Black |
| Cutting Method | Scissors or sharp knife |
| Country of Origin | Made in China |
Common Applications
- Automotive wiring harnesses and electrical connectors
- Home and commercial electronics repair
- DIY hobbyist and maker projects
- Cable management and bundling
- Protecting soldered joints and wire splices
- Colour-coding wiring systems for easy identification
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For guidance on electrical safety and wiring best practices, visit the U.S. Consumer Product Safety Commission – Electrical Safety Resources.
Frequently Asked Questions
Q: What heat source can I use to shrink the tubing?
A: You can use a dedicated heat gun, a lighter, or even a hairdryer on its highest setting. A heat gun is recommended for the most even and controlled shrinkage, especially for automotive and electronics applications. The tubing begins shrinking at ≥84°C and fully shrinks at ≥120°C.
Q: Is this heat shrink tubing suitable for outdoor or automotive use?
A: Yes. The crosslinked polyethylene (PE) construction is flame retardant and operates across a wide temperature range (-55°C to +125°C), making it well suited for automotive wiring, engine bays, and outdoor electrical installations where temperature fluctuations are common.
Q: How do I choose the right size tubing for my wire?
A: Select a tube with a supplied (pre-shrink) inner diameter that is slightly larger than the outer diameter of your wire or connector. After shrinking (2:1 ratio), the tubing will conform tightly. For example, a 4mm tube will shrink down to approximately 2mm. This kit includes multiple sizes to cover a wide variety of wire gauges.
