Release Ease 234 TFP (porous PTFE-coated fiberglass)
Where to buy| Property | Value |
|---|---|
| Maximum use temperature | 550 °F (288 °C) |
| Thickness | 0.0024 in (0.060 mm) |
| Colour | Brown |
| Shelf life | Unlimited in original packaging at 72 °F (22 °C) |
| Widths, 100 yd rolls | 38, 50, 60 in (97, 127, 152 cm) |
Airtech data sheet (2018). Airtech says maximum use temperature depends on time and process and recommends testing before use.
Types named by the FAA (p. 7-21)
| Material | Note |
|---|---|
| Polyester | Preferred when heat-set to remove shrinkage |
| Nylon | Can be hard to remove if overheated |
| FEP | Fluorinated ethylene propylene |
| Coated fiberglass | Some coated types can leave contamination on the surface |
FAA-H-8083-31B, p. 7-21.
Rules of use
AC 43.13-1B 3-2 places a peel ply over the resin of a wet repair to exclude air and work out bubbles; it is removed after cure. In a bonded repair, leave it on until just before bonding. The full bag stack is on the vacuum bagging page.
Limits — when NOT to use this
- Check the cure temperature against the peel ply rating.
- Coated types can contaminate a surface to be bonded.
Where to buy
AmericaDistributor coming soonOur partner for this region is on its way
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Distributors coming soon.
Sources
- Airtech, Release Ease 234 TFP data sheet (2018-10-09) — porous PTFE-coated fiberglass fabric: maximum use temperature, thickness, shelf life, sizes.
- FAA-H-8083-31B, AMT Handbook — Airframe, Volume 1 (2023), Chapter 7 — peel ply (p. 7-21).
- AC 43.13-1B, Change 1, Chapter 3, Fiberglass and Plastics — paragraph 3-2 (pp. 3-1 to 3-2).
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.