Heat shrink tube ORNO fi 2.5 mm, 1 m, black, blister pack is a flexible polyolefin sleeve designed to provide electrical insulation, mechanical protection and strain relief for wires and cable joints. With a 2.5 mm inner diameter before shrinking and a continuous 1 m length, this black heat shrink tube is suitable for small repairs, cable bundling and insulating exposed conductors in electronic and automotive contexts. The blister pack keeps the tube compact and protected until use.
Advantages
The product offers reliable insulation and abrasion resistance, reducing the risk of short circuits and improving the durability of cable connections. Its black color gives a discreet, uniform finish and basic UV resistance for indoor and limited outdoor use. The 1 m length allows cutting to measure for multiple repair or assembly tasks, while the narrow diameter fits common single-core wires and small cable assemblies.
Suitable for
- Insulating soldered or crimped wire joints in electronics
- Providing strain relief on cable entries and connector terminations
- Repairing damaged outer insulation on single wires and small cables
- Cable bundling and color-neutral concealment of wiring runs
Key specifications
- Material: heat-shrinkable polyolefin
- Inner diameter before shrink: 2.5 mm
- Length: 1 m (continuous)
- Color: black
- Packaging: blister pack
How to use
Measure and cut the required length, slide the tube over the section to be protected, and apply heat evenly until the tube contracts snugly around the conductor or joint. Use a heat gun at moderate temperature or a suitable heat source while avoiding direct flame to prevent scorching. Allow the sleeve to cool so it conforms tightly to the underlying cable and maintains insulation and mechanical support.
Usage recommendations
For optimal results, select a tube length that extends beyond the damaged area by a few millimetres at each end, and apply heat gradually to achieve uniform shrinkage. When working on automotive or outdoor wiring, ensure connectors and surrounding components are clean and free of grease before applying the sleeve.
