4mm Heat Shrink Tube Black - 1 Meter
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4mm Heat Shrink Tubing Black - 1 Meter Heat shrink tube (or, heat shrink tubing) is a tube that shrinks in diameter when heated. After being heated with a heat gun, it shrinks to 50% of its original diameter. Heat shrink sleeve with a completely thermoplastic covered interior surface. When heated, the sleeve's diameter shrinks by 2:1 and the interior resin melts. The sleeve and the resin harden as they cool. This combination ensures resistance to pullout and perfect waterproofing for your connections, preventing a sleeve from slipping. In the case of a connector mounted on a cable (coaxial, for example), this sleeving ensures reinforcement at the point where the cable is generally subject to stress when the radius of the curve is small. To protect the connection, the tubing is wrapped around it and heated with a lighter, matchstick, oven, hot air gun, or similar tool. A soldering iron (held close but not touching the tube) or the heat from a lighter are both convenient but ineffective methods for shrinking the tube. These processes cause the tubing to shrink to one-sixth of its original diameter (depending on the heat shrink, 2:1 is the most common), resulting in a tight fit over irregularly shaped joints. This provides good electrical insulation, dust, solvent, and other foreign material protection, and strain relief. Heat shrink tubing, like any other plastic, can melt, scorch, or catch fire if overheated. Applications: Wire protection Joining Wires Electrical Insulation Cables and Wire bonding
- 2:1 shrink ratio – reduces from 4mm to 2mm when heated
- Waterproof and dustproof seal with adhesive inner lining
- Suitable for wire insulation, splicing, and strain relief
- Compatible with heat guns, lighters, and soldering irons
- 1-meter length for multiple applications
- Provides excellent electrical insulation
- Forms waterproof and corrosion-resistant seal
- Offers mechanical strain relief at connection points
- Adheres to irregular shapes for secure fit
- Flame-retardant and RoHS compliant
| Color | Black |
|---|---|
| Diameter (mm) | 4 |
| Shrink Temperature (°C) | 90 |
| Operating Temperature (°C) | -40 to 125 |
| Tensile Strength (MPa) | ?10.4 |
| Shrink Ratio | 2:1 |
| Elongation Ratio | ?200% |
| Radial Shrinking Ratio | ?50% |
| Dielectric Strength | ?15 kV/mm |
| Flammability | VW-1 |
| Concentricity | ?65% |
| Length (Meter) | 1 |
What is the shrink ratio of this heat shrink tube?
This 4mm heat shrink tube has a 2:1 shrink ratio, reducing to 2mm when heated.
Can I use a lighter to shrink this tubing?
Yes, a lighter or heat gun can be used, but avoid direct contact to prevent scorching.
Is this heat shrink tube waterproof?
Yes, the thermoplastic interior seals connections, providing waterproof and dustproof protection.
What wires is this 4mm tubing suitable for?
Ideal for insulating wires, splices, and small connectors in electronics and automotive applications.
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About 4mm Heat Shrink Tube Black - 1 Meter by Iotcart
Shop 4mm black heat shrink tubing with 2:1 ratio. Waterproof, durable insulation for wires and splices. Compatible with Arduino/Raspberry Pi projects.
Categorised under: Cables› Heat Shrinks