Heat Shrink Tubing Kit – Wire Insulation Sleeves for Auto & DIY

Heat Shrink Tubing Kit – Reliable Wire Insulation for Every Project

Keep your wiring neat, protected, and professionally finished with this versatile Heat Shrink Tubing Kit. Made from high-quality crosslinked polyethylene (PE), these tubing sleeves contract to half their original diameter when heat is applied, creating a snug, secure wrap around wires, cables, and connectors. Ideal for automotive wiring, electronics repair, home DIY projects, and hobbyist builds.

Why You'll Love This Kit

• 2:1 Shrinkage Ratio – Shrinks to ½ its supplied diameter for a tight, custom fit on any wire gauge.
• Wide Temperature Range – Operates reliably from -55°C to +125°C, suitable for engine bays, outdoor setups, and high-heat environments.
• Flame Retardant – Meets safety standards to help prevent fire hazards in electrical installations.
• High Dielectric Strength – Rated at 15 KV to provide excellent electrical insulation and protect against shorts.
• Generous Quantity – Available in multi-color sets (up to 800 pcs) or all-black sets (up to 650 pcs) so you always have the right size on hand.
• Easy to Cut & Apply – Simply cut to length with scissors or a sharp knife, slide over the wire, and apply heat with a heat gun or lighter.
• Multi-Use Compatibility – Perfect for automotive wiring, marine applications, electronics repair, robotics, crafts, and home electrical projects.

Technical Specifications

• Material: PE / Crosslinked Polyethylene
• Shrinkage Ratio: 2:1
• Minimum Shrinkage Temp: ≥84°C
• Full Shrinkage Temp: ≥120°C
• Operating Temperature: -55°C to +125°C
• Tensile Strength: 10.4 MPa
• Dielectric Strength: 15 KV
• Flammability: Flame Retardant
• Colors Available: Multi-color or Black
• Quantity Options: Colors – 164 / 328 / 560 / 800 pcs; Black – 127 / 650 pcs
• Country of Origin: Made in China

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Complete your toolkit with these related products from our store:

• 1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino
• 0.25mm 1000-Turn Precision Copper Inductor Coil for DIY Circuits

Safe Electrical Practices

For guidance on safe wiring and electrical insulation standards, visit the U.S. Consumer Product Safety Commission (CPSC) for consumer electrical safety resources.

Learn more: Insulator (electricity)

Frequently Asked Questions

Q: What heat source can I use to shrink the heat shrink tubing?

A: You can use a dedicated heat gun (recommended for best results), a lighter, or even a match. Apply heat evenly around the tubing and watch it contract snugly around your wire. Avoid direct open flame contact for extended periods to prevent damage to the tubing.

Q: Is this heat shrink tubing suitable for automotive wiring?

A: Absolutely. The tubing is rated to operate between -55°C and +125°C, making it well-suited for under-hood automotive applications, marine environments, and other high-temperature or outdoor settings. Its flame retardant properties add an extra layer of safety.

Q: Can I cut the tubing to custom lengths?

A: Yes! Simply use a pair of scissors or a sharp knife to cut the tubing to your desired length before applying heat. The crosslinked PE material cuts cleanly without fraying.

Q: What sizes are included in the kit?

A: The kit comes in multiple size assortments covering a range of wire diameters. Multi-color sets include up to 800 pieces and black sets up to 650 pieces, giving you a wide variety of sizes for different wiring projects in a single convenient pack.