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Heat Shrink Sleeve Tube - 3mm (1 meter)

SKU: CZGJY9O8LB
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4.7 (100 reviews)
The Heat Shrink Sleeve Tube – 3mm Diameter – Black – 1 Meter is a durable and flexible insulation tube designed to protect electrical wires, solder joints, cable splices, and electronic components. When heated with a heat gun or other suitable heat source, the tubing shrinks tightly around the enclosed object, creating a secure, insulated, and professional-looking finish. Made from...
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The Heat Shrink Sleeve Tube – 3mm Diameter – Black – 1 Meter is a durable and flexible insulation tube designed to protect electrical wires, solder joints, cable splices, and electronic components. When heated with a heat gun or other suitable heat source, the tubing shrinks tightly around the enclosed object, creating a secure, insulated, and professional-looking finish.

Made from high-quality polyolefin material, this heat shrink tubing offers excellent resistance to abrasion, moisture, dust, chemicals, and mechanical wear. The 3mm diameter makes it suitable for small to medium-sized wires, connectors, LEDs, sensor leads, PCB wiring, and various DIY electronics projects.

The black color provides a clean, professional appearance while also helping with cable management and identification in electronic assemblies. It is widely used by electronics hobbyists, students, repair technicians, robotics enthusiasts, and industrial professionals for improving the durability and reliability of electrical connections.

Whether you're building robotics projects, repairing damaged wires, assembling battery packs, or organizing cables, this 3mm heat shrink tube offers a simple and reliable insulation solution that enhances both safety and appearance.

Key Features

  • 3mm inner diameter before shrinking
  • 1-meter continuous length
  • High-quality polyolefin material
  • Excellent electrical insulation
  • Protects against moisture, dust, and abrasion
  • Provides neat and professional cable finishing
  • Easy to shrink using a heat gun or hot air source
  • Flexible, durable, and flame-retardant
  • Ideal for electronics, robotics, automotive wiring, battery packs, and DIY projects

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Product Type: Heat Shrink Sleeve Tube
Inner Diameter (Before Shrinking): 3 mm
Color: Black
Length: 1 Meter
Shrink Ratio: 2:1 (Shrinks to approximately 1.5 mm after heating)
Material: Polyolefin
Operating Temperature: -55°C to +125°C
Minimum Shrink Temperature: 70°C
Recommended Full Shrink Temperature: 110°C–125°C
Flame Retardant: Yes
Insulation Voltage: Suitable for low-voltage electrical insulation applications
Flexibility: Highly flexible and durable after shrinking
Chemical Resistance: Resistant to common chemicals, oils, moisture, and corrosion
Abrasion Resistance: Excellent protection against wear and mechanical damage
Water Resistance: Provides a protective barrier against moisture when properly installed
Application Method: Heat using a heat gun, hot air blower, or controlled heat source
Reusable: No (Single-use after shrinking)

Additional Resources

Heat Shrink.PDF

FAQ

1. What is a 3mm Heat Shrink Sleeve Tube used for?

A 3mm Heat Shrink Sleeve Tube is used to insulate, protect, and organize wires, solder joints, and electronic connections. When heated, it shrinks tightly around the wire, providing mechanical protection and electrical insulation.

2. How do I shrink a 3mm heat shrink tube?

Simply slide the tube over the wire or connection and apply heat evenly using a heat gun. A lighter or hot air source can also be used carefully. The tube will shrink uniformly to form a snug, protective covering.

3. Is this heat shrink sleeve waterproof?

The standard 3mm heat shrink sleeve offers protection against dust, moisture, and abrasion but is not fully waterproof. For waterproof sealing, use adhesive-lined (dual-wall) heat shrink tubing.

4. Can I use this sleeve on battery packs and Arduino projects?

Yes. It is ideal for insulating battery pack connections, Arduino wiring, sensor modules, robotics projects, DIY electronics, RC models, automotive wiring, and general electrical repairs.

5. What wire size is suitable for a 3mm heat shrink tube?

A 3mm heat shrink tube is suitable for insulating small to medium-sized wires, cable joints, connectors, and soldered splices. After shrinking, it provides a secure fit on wires significantly smaller than its original diameter, depending on the shrink ratio (typically 2:1).

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