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Nylon/Retort CPP Thermoforming Film
NY/RCPP 135 thermoforming film used as a sealing film on continuous automatic vacuum thermoforming lines, built to withstand high-temperature retort sterilization and sous-vide cooking. Forms a durable vacuum bag for chicken, ham, sausage, bacon, duck, meat, and seafood.
A Retort-Grade Sealing Film for High-Temperature Sterilization
F2235 goes beyond standard refrigerated vacuum packing: at 135μm it is engineered to withstand high-temperature retort sterilization and sous-vide cooking as well as room-temperature, refrigerated, and frozen vacuum packaging, at a suggested 30–50mm forming depth. It holds the nylon range's formability and pinhole-free twist resistance, so packs stay clear and retail-ready through the added stress of thermal processing.
Where F2235 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
F2235 is the 135μm grade in Intlpak's NY/RCPP retort thermoforming film family. The table below shows F2235 alongside the deeper-draw 150μm sibling grade, F2237 .
| 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 F2235 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 F2235
F2235 and F2237 both form 30–50 mm — what does the gauge difference buy?
Material margin and cavity rigidity, not extra depth. F2235 is 135 μm and F2237 is 150 μm, both covering the same 30–50 mm range. Choose F2237 for heavier contents, sharper product geometry, or where the tray must hold its shape; for ordinary prepared foods F2235 does the job at lower material cost.
What sterilization can F2235 take?
High-temperature retort processing. The RCPP layer in the structure is developed specifically for retort service, so a formed pack can go directly into the retort, while the film also serves ambient, chilled and frozen distribution and suits sous-vide. Validate your exact temperature and dwell with sample material, and request matching seal-strength data from our engineers.
If I'm not sterilizing, is F2235 wasted?
Usually, yes. Chilled or frozen vacuum packs need no retort layer, and a nylon grade such as F2606 (150 μm, 40–50 mm) costs less and reads clearer. F2235's value is the ability to sterilize after forming — if you never use it, there is no reason to pay for it.
Is F2235 the top or bottom web?
Bottom web. On automatic thermoforming machinery it is heated and formed into the food-carrying tray, then sealed to a top web under vacuum, after which the pack can go straight to high-temperature sterilization. Typical uses are retort meals, sous-vide dishes and ambient-distributed ready meals.
Why aren't haze and elongation published for F2235?
Full mechanical data for this SKU is not yet part of the published technical data sheet, so the page lists only confirmed thickness, forming depth and retort capability. We don't fill the gaps with estimates — for yield and break point, elongation, haze and the rest, request the technical data sheet from our engineering team.