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Nylon/Retort CPP Thermoforming Film
NY/RCPP 150 thermoforming film used as a sealing film on continuous automatic vacuum thermoforming lines, the heavier-gauge sibling of F2235 for slightly deeper draw needs. Built to withstand high-temperature retort sterilization and sous-vide cooking for chicken, ham, sausage, bacon, duck, meat, and seafood.
A Heavier-Gauge Retort Sealing Film for Added Forming Confidence
F2237 is the heavier 150μm sibling of F2235 in the same retort and sous-vide family, supporting the same 30–50mm forming depth with the added margin a heavier gauge brings. Like F2235 it withstands high-temperature retort sterilization and sous-vide cooking alongside standard room-temperature, refrigerated, and frozen vacuum packaging, without giving up formability, clarity, or pinhole-free twist resistance.
Where F2237 Is Used
- 1 Vacuum packaging film for room temperature, refrigerated, and frozen food
- 2 Fresh beef, chicken, pork, seafood, sausage, and fresh meat products
- 3 High-temperature retort food sterilization
- 4 Sous-vide packaging
Specifications — Nylon/Retort CPP Thermoforming Film Family
F2237 is the 150μm grade in Intlpak's NY/RCPP retort thermoforming film family. The table below shows F2237 alongside the lighter-gauge 135μm grade, F2235 .
| Property | Unit | F2235 (NY/RCPP #135) | F2237 (NY/RCPP #150) |
|---|---|---|---|
| Thickness | μm | 135 | 150 |
| Suggested Forming Depth | mm | 30–50 | 30–50 |
| Structure | — | NY/RCPP | NY/RCPP |
| Retort / Sous-Vide Suitable | — | Yes | Yes |
| Formability & Optics | — | Best formability, resistance to twists without pinholes, high transparency, high gloss, good gas barrier properties | |
| Width | — | Customized | |
| Length | — | Customized | |
Detailed mechanical values (yield/break point, elongation, tensile modulus, C.O.F., haze) are available on request — contact our engineers for the full technical data sheet.
Reviewed by: Intlpak R&D Team.
Why F2237 Performs
Storage Notice
Avoid exposure to direct light, wind, and rain — store under appropriate conditions. Prevent products from slipping from high places, being polluted, or being impacted during handling.
Quality & Certification
Manufactured under ISO 9001 quality management and GMP clean-room production, with ISO 22000 & HACCP food-safety certification. All products undergo annual safety checks.
Questions About F2237
F2237 is 15 μm thicker than F2235 but forms the same depth — why pay for the gauge?
For tray strength and material margin. Both cover 30–50 mm, but at 150 μm F2237 retains more wall thickness at the corners after drawing, giving a stiffer cavity and greater puncture margin. Where contents include bone or hard fragments, or packs carry stacking load, those 15 μm earn their place; otherwise F2235 is the economical choice.
Is F2237's retort capability the same as F2235's?
Identical. Both are Nylon/Retort CPP structures drawing high-temperature capability from the same RCPP layer design, and gauge does not change that mechanism. The difference is mechanical margin, not sterilization compatibility — validate actual process conditions with samples either way.
F2237 and F2606 are both 150 μm — what separates them?
Whether the pack can be sterilized. F2606 is a plain nylon food forming film for chilled and frozen vacuum packs, with no retort capability; F2237 carries an RCPP layer and can go into the retort after forming. Same gauge, different jobs — and the first selection question is always whether this pack goes through high-temperature sterilization.
Which products suit F2237?
Ambient-distributed prepared meals, sous-vide dishes, and chilled or frozen items that still require a sterilization step. Formed as the bottom web and sealed to a top web under vacuum, it holds seal integrity through sterilization — a common structure for ready meals needing long ambient shelf life.
Where do I get F2237's detailed specification data?
From our engineering team. The page currently lists only confirmed figures — 150 μm thickness, 30–50 mm forming depth and retort capability — because full mechanical data is not yet in the published technical data sheet. If you need documentation for internal qualification, describe your application conditions and we will supply matching technical files and samples.