Fluoropolymer Heat Shrink Tubing “PTFE-AWG Series” – 4:1 Shrink Ratio
- Material: Fluoropolymer
- Shrink Ratio: 4:1
- Application Range: Coating, wiring, and insulation under extreme environmental conditions
- Color: Transparent
- Operating Temperature: -70 °C to +260 °C
- Minimum Shrink Temperature: > +330 °C
- Melting Temperature: 327 °C according to ASTM D2116
- Flammability: V0 according to UL 94 – V0
- Oxygen Index: > 95%
- Tensile Strength: 29 to 39 N/mm² according to DIN 53455 (at 23 °C)
- Elongation at Break: 200% to 500% according to DIN 53455 (at 23 °C)
- Longitudinal Change: ± 10%
- Density: 2.14 to 2.19 g/cm³ according to DIN 53479
- Dielectric Strength: 40 to 80 kV/mm according to DIN 53481
- Volume Resistivity: ≥ 10¹⁸ Ω·cm according to DIN 53482
- Water Absorption: 0.01%
- Thermal Conductivity: 0.23 W/m·K (at 23 °C)
Heat Shrinking Instructions
- To shrink the heat shrink tubing, use equipment specifically designed for this operation, such as heat guns or hot air tunnels.
- Begin shrinking from one end—preferably the most critical area—and proceed slowly toward the opposite end. This method helps prevent the formation of air bubbles between the inner wall of the tubing and the object being covered.
- If the object to be covered is made of metal or is a good heat conductor, it is recommended to preheat the object to avoid “cold spots,” allowing for a smooth and perfect fit of the heat shrink tubing.
- To prevent overheating of the heat shrink tubing, ensure even heat distribution. Excessive overheating during the shrinking process may cause bubbling, discoloration, and, in some cases, rupture of the tubing.
