FEP Heat Shrinkable Tubing
FEP (fluorinated ethylene propylene) heat shrink tubing is provided in it’s expanded state and molds tightly over both regular and irregular shapes after a brief application of heat. FEP offers good flexibility, optical clarity, high lubricity and is a cost-effective alternative to other heat shrink options.
Within the medical industry, heat shrink is most often used as a manufacturing aid for catheter reflow and tipping operations, but may also be used for strain relief termination, insulation, encapsulation, and as a protective layer against heat, moisture, abrasion, and corrosion for a variety of industries including aerospace, automotive, and industrial electrical.
All heat shrink tubing manufactured by New England Tubing Technologies is manufactured in a clean room environment meeting the criteria of ISO 14644-1:2015 Class 8. This provides critical contamination control and elimination of environmental variables that could adversely affect the manufacturing process, thus providing a high level of quality assurance.
Shrink Ratios
Shrink ratio is a value that indicates how much a heat shrink tube will reduce in size when exposed to heat. It is a comparison between the tubing’s original size and it’s final, shrunk size.
For example: a 0.160” expanded ID heat shrink with a 1.6:1 shrink ratio will be 0.100” recovered ID after heat shrinking is complete.
Larger shrink ratios can cover a wider range of sizes as well as convoluted and irregular shapes. More uniform parts require smaller heat shrink ratios for complete coverage.
Properties of FEP Heat Shrink:
- Lower Shrink Temps
- Chemical Resistance
- Lubricious
- Excellent Dielectric Strength
- 200° C Service Temp
- Optically Clear
FEP Heat Shrinkable Tubing Available in Stock
| Shrink Ratio | Min Expanded ID | Nom Recovered ID | Recovered Wall Thickness | Standard Cut Length | Covers French Sizes |
|---|---|---|---|---|---|
| 1.6:1 | 0.064" | 0.040" | 0.010" +/- 0.002" | 48" +/- 1" | 2.5 - 4 |
| 1.6:1 | 0.080" | 0.050" | 0.010" +/- 0.002" | 48" +/- 1" | 4 - 5 |
| 1.6:1 | 0.096" | 0.060" | 0.010: +/- 0.002" | 48" +/- 1" | 5 - 6 |
| 1.6:1 | 0.128" | 0.080" | 0.010" +/- 0.002" | 48" +/- 1" | 7 - 9 |
| 1.6:1 | 0.150" | 0.094" | 0.010" +/- 0.002" | 48" +/- 1" | 8 - 11 |
| 1.6:1 | 0.175" | 0.109" | 0.012" +/- 0.002" | 48" +/- 1" | 9 - 12 |
| 1.6:1 | 0.202" | 0.126" | 0.012" +/- 0.002" | 48" +/- 1" | 10 - 15 |
| 1.6:1 | 0.240" | 0.150" | 0.012" +/- 0.002" | 48" +/- 1" | 12 - 18 |
Custom sizes from 0.050" - 0.450" expanded ID also available
Custom lengths up to 60" available
Shrink ratios up to 1.1:8 available (construction dependent)