Sealing system
Lidding film matched to the tray — validated as one system
A MAP package only works when tray, film and sealing parameters agree. We supply the lidding film that matches your tray structure — high barrier, food-grade and fluorine-free.
Film families
Seven film systems, one selection table
Waterproofing, oil resistance, sealability and temperature rating differ per film. The table below is our standard selection matrix — "best" and "ok" are the relative grades we use when shortlisting with customers.
EVOH — the MAP standard
The standout property of EVOH is gas barrier: it retains the CO₂ or N₂ that protects the food, making it the right choice for fresh meat and ready meals with long chilled storage.
CPET — oven-ready
Excellent high and low temperature resistance, suitable for airline-meal style requirements, rated to about 220 °C.
Selection matrix
Lamination choice at a glance
| Film | Waterproof | Oil-proof | Alcohol-proof | Sealable with | Temp. range (°C) |
|---|---|---|---|---|---|
| PE | ok | ok | ok | PET+PET mix | 100–120 |
| GPET | best | best | best | PET | 150–180 |
| CPET | best | best | best | PET | 180–220 |
| PBAT | ok | ok | ok | PE+PET | 100–120 |
| CPP | best | best | ok | PP / PE | 120–150 |
| EVOH | best | best | best | PP / PE | 120–150 |
| PLA | ok | ok | ok | PE+PET / PLA | 100–120 |
Temperature ratings are indicative and vary slightly with film thickness and product design; the final rating for your structure is confirmed during validation.
FAQ
Technical questions
Which lidding film should we choose?
It depends on your food and process: EVOH systems are the standard for MAP because of their gas barrier; CPET suits oven-ready meals up to about 220 °C; CPP gives high clarity with softer texture. Send us the food category and temperature range and we will recommend and validate the pairing.
Do your films contain PFAS?
Our food-grade lidding films are fluorine-free. Note that PFAS-free oil repellency behaves differently from traditional fluorochemical agents — we specify the exact oil-resistance performance for your application during validation.
What does easy-peel versus tight-seal mean?
Easy-peel film opens cleanly from a corner for consumer convenience; tight-seal film bonds firmly for leak-proof transport. The PE/EVOH system uses an easy-tear configuration, while other films follow the conventional sealing method.
Can the film be printed?
Yes — top lidding film can carry print; we recommend keeping it to three colours or fewer. Colour-matched film can be customised to your Pantone reference.
Not sure which film fits your tray?
Send the tray structure, food type and heating process — our engineers will specify film, seal temperature and peel force.