Heat shrink sleeve in self-extinguishing KYNAR with shrinkage 2 ÷ 1 “Series 175-UL”
- Material: Kynar
- Shrinkage: 2:1
- Field of application: coating and protection of electrical wiring
- Minimum shrinkage temperature: > +175 °C
- Min/max operating temperature: -55°C to +175°C
- Color: Transparent
- Self-extinguishing: according to Regulation UL224 VW-1
- Dielectric strength: ≥ 25 KV/mm according to ASTM D 2671
- UL approval: File No. E356983
- Elongation at break: 150%
- Elongation after heat aging test: 100% (168 hours at 250°C)
- Thermal shock: no cracking (4 hours at 300°C)
- Volume resistance: 10¹³ Ω/cm
Heat shrink indication
- When shrinking the heat-shrinking sleeve, use equipment made for this specific operation, such as guns or hot air tunnels.
- Shrink the sleeve 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 a 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.
