Volsun Insulation Waterproof PTFE-FEP Dual-layer Heat Shrink Tubing
- TZRS-PTFE
- Detailed
The double-layer heat shrink tubing is made from a blend of polytetrafluoroethylene (PTFE) and polyperfluoroethylene (FEP). This unique blend gives the double-layer heat shrink sleeve outstanding electrical insulation properties, a low thermal conductivity coefficient, great flexibility, high resistance to high temperatures, and waterproof and gas-proof characteristics.
Technical Performance
Technical index of polytetrafluoroethylene (PTFE) outer layer
Performance project
representative value
test method
Melting point
327℃
/
Use temperature
-65-260℃
/
Density
2.15g/cm3
ASTM D792
Tensile strength
24MPa
ASTM D638
Elongation at break
300%
ASTM D638
Fire resistance
VW-1
UL-224
Dielectric constant
2.1
ASTM D150
Volume resistivity
>1015Ω·cm
ASTM D257
| Performance project | representative value | test method |
| Melting point | 260-270℃ | / |
| Use temperature | -65-200℃ | / |
| Density | 2.15g/cm3 | ASTM D792 |
| Tensile strength | 20MPa | ASTM D638 |
| Elongation at break | 300% | ASTM D638 |
| Fire resistance | VW-1 | UL-224 |
| Dielectric constant | 2.1 | ASTM D150 |
| Volume resistivity | >1015Ω·cm | ASTM D257 |
Dimensions
| Specifications |
The inner diameter before contraction D（mm) |
After contraction the inner diameter D（mm) |
Thickness before shrinkage W（mm) |
Thickness after shrinkage W（mm) |
Packaging length |
|
Outer layer: Ф 4.0 |
4.0+0.3 | ≤2.1 | 0.20±0.08 | 0.30±0.08 | 1m/pcs |
|
Inner layer : Ф 3.0 |
3.0±0.1 | Melt | 0.5±0.08 | Melt |
Note: Special sizes and packaging can be customized as required.
