Heat shrink polyolefin sleeve with Shrinkage 3 ÷ 1
- Material: Polyolefin
- Shrinkage: 3:1
- Field of application: electrical wiring
- Minimum shrinkage temperature: > +90 °C
- Min/max operating temperature: -55°C to +125°C
- Low flexibility temperature: no cracks (-55°C)
- Self-extinguishing: according to UL224 VW-1
- Colors: Transparent – Black and other colors on request
- Tensile strength: 13 N/mm² according to ASTMD638
- Elongation at break: 300% according to ASTMD638
- Elongation after heat aging test: 200% (168 hours at 150°C)
- Thermal shock: no damage (4 hours at 250°C)
- Water absorption: ≤ 0.15% according to ASTMD570
- Fluid resistance: good
- Mold Resistance: Good
- Volume resistivity: 1014 ohm.cm according to ASTMD257
- Copper corrosion: None
- Fluid resistance: according to ISO1817, ISO37 MIL-1-23053
- Dielectric strength: 20 kV/mm
- Longitudinal variation: ≤ +1% -10% maximum
- Specific gravity: 1.45 g/cm³
Heat shrink indication
- When shrinking the heat shrinking sleeve, use equipment made for this specific operation such as, for example, guns or hot air tunnels.
- Shrink the sheath starting at one end, the most critical part, and then proceed slowly to the opposite end. This method avoids the formation of air bubbles between the inner wall of the heat shrink sleeve and the object it covers.
- In the event that the object to be covered is made of metal or a good heat conductor, it is advisable to preheat the object to avoid “cold areas”, so as to allow a perfect and soft adaptation of the heat-shrinking sleeve.
- In order to avoid overheating of the heat shrink sleeve, ensure there is regular heat distribution. Excessive overheating of the material during the shrinking process can cause bubbles, discoloration and in some cases even breakage of the heat-shrinking sleeve.
