Heat Shrink Tube 3mm Per Meter

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Detail Description

The 3mm Heat Shrink Tube is a thin, flexible insulation tube designed to protect small-diameter wires and delicate connections. Sold per meter, this tube is made from high-quality, flame-retardant polyolefin and is ideal for compact electronics, Arduino projects, and other DIY applications. Once heated, it shrinks down to approximately 1.5mm, tightly sealing around wires or soldered joints for improved insulation, durability, and safety.

How It Works:

Cut the required length of tubing, slide it over the wire or joint you want to insulate, and apply heat using a heat gun or lighter. The tubing will shrink to half its original size, gripping the wire securely and providing a neat, professional appearance. Its 3mm pre-shrink diameter is best suited for small-gauge wires and precision electronic connections.

Typical Use Cases:

Insulating small gauge wires (22–28 AWG)
Covering solder joints in circuit boards and microcontroller projects
Strain relief for delicate connectors and jumper wires
Organizing and color-coding wires (if available in different colors)
Electrical protection in compact or low-voltage applications

Limitations:

Shrinks from 3mm to ~1.5mm — not suitable for larger wires
Requires a heat source like a heat gun or lighter
Not recommended for high-temperature or industrial-grade use
May harden or crack over time if exposed to UV or outdoor elements without protection

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