Heat Shrink Dual Wall PTFE FEP Tubing
Dual Wall PTFE FEP Heat Shrinkable Tubing is constructed with an exterior jacket of Heat Shrinkable PTFE and an inner liner of Extruded FEP. Dual Shrink PTFE FEP is designed for use in areas of high temperature, and takes advantage of an FEP inner liner that melts during shrink down. The FEP melt liner creates a seal not available with other Fluoropolymers. When shrinking, the FEP melts and flows while the heat shrink PTFE compresses and contains the material forming a solid mechanical encapsulation.
Dual Wall PTFE FEP or Dual Shrink is designed to provide a tight, moisture-proof bond over wires, cables, connectors, splices, terminals. Dual Wall material can also be used as an end cap for wires.
Old specifications such as PennTube WTF can be crossed referenced to newer part numbers such as TSSS : Standard Wall and TSSL : Light Wall.
Dual Shrink PTFE FEP Light Wall
| Dual Wall PTFE/FEP | Min. Supplied ID | Recovered ID | Wall After Shrinking |
|---|---|---|---|
| TSSL065 | .065 | .000 | |
| TSSL115 | .115 | .045 | .015 |
| TSSL130 | .130 | .060 | .015 |
| TSSL180 | .180 | .065 | .015 |
| TSSL190 | .190 | .070 | .015 |
| TSSL240 | .240 | .150 | .020 |
| TSSL350 | .350 | .210 | .025 |
| TSSL480 | .480 | .315 | .032 |
| TSSL700 | .700 | .500 | .040 |
| TSSL1000 | 1.000 | .700 | .045 |
Dual Shrink PTFE FEP Standard Wall
| Dual Wall PTFE/FEP | Min. Supplied ID | Recovered ID | Wall After Shrinking |
|---|---|---|---|
| TSSS036 | .036 | .000 | |
| TSSS060 | .060 | .000 | |
| TSSS130 | .130 | .000 | |
| TSSS160 | .160 | .000 | |
| TSSS190 | .190 | .062 | .035 |
| TSSS250 | .250 | .125 | .035 |
| TSSS350 | .350 | .190 | .035 |
| TSSS450 | .450 | .312 | .055 |
| TSSS700 | .700 | .440 | .055 |
| TSSS950 | .950 | .630 | .065 |
For applications and products that can not withstand the elevated temperatures need in order to shrink PTFE Tubing we have developed a dual layer system that requires a much lower temperature in order to shrink. Our Dual Wall FEP THV material will shrink and encapsulate at temperatures around 450°F. This low temperature dual shrink material allows for sensitive electronics to benefit from the protection of Fluoropolymer Tubing and its properties.