Carton Window Films
When you need to see clearly.
Films for the food and packaging sector. We supply Polymex®, Valumex® and Enviromex® PET films to the carton and packaging industries.
- Producing packaging film since
- 1980
Our film ranges
Three ranges, one standard of clarity.

Sustainable
Enviromex®
Sustainable film solutions, with PCR content or compostable, combining clarity, strength and environmental responsibility.

High-performance
Polymex®
High-performance technical materials and films delivering exceptional characteristics, stability and strength for precision applications.

Cost-effective
Valumex®
Cost-effective films built for consistent quality and versatile performance across a diverse range of applications.
PET carton window films
Crystal clear, strong, and more sustainable.
Our PET (polyethylene terephthalate) films are valued for their exceptional strength, crystal-clear clarity and excellent barrier properties.
- 30%
- Post-consumer recycled (PCR) content
- 60%
- Higher PCR option
- 90%
- Highest PCR option, where required
With the same outstanding clarity, strength and reliability as virgin material.
Strength and clarity
PET films with exceptional strength, crystal-clear clarity and excellent barrier properties, for cartons and packaging that show products at their best.
Recycled content
For businesses looking to combine performance with sustainability, our films can contain 30% post-consumer recycled content, increasing to 60% or even 90% where required.
Biodegradable options
For even greater sustainability credentials, we also offer biodegradable film options, helping customers reduce their environmental footprint without compromise.
Overview
Carton window and packaging films at a glance
Compare our films by the properties that matter for your packaging, or choose what you need to see which films qualify.
What do you need?
Choose properties to find the right material. 8 materials compared.
| Property | Polyester | RPET | Acetate | PLA | APET | BOPP | LDPE | PVC |
|---|---|---|---|---|---|---|---|---|
| Food approved | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Recyclable | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Recycled content | Yes | Yes | No | No | Yes | No | No | No |
| Antifog | Yes | Yes | No | Yes | Yes | Yes | No | No |
| High clarity | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
| Compostable | No | No | Yes | Yes | Yes | No | No | No |
| Biodegradable | No | No | Yes | Yes | No | No | No | No |
| Heat seal | Yes | Yes | No | Yes | No | Yes | Yes | No |
| Freezer safe | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes |
| Microwaveable | Yes | Yes | No | No | Yes | Yes | Yes | No |
| Ovenable | Yes | Yes | No | No | Yes | No | No | No |
Not sure which film suits your application? Our technical team can advise.

Corona treated options
Better adhesion for printing, coating and lamination.
We offer both single-sided and double-sided corona treatment for films, tailored to your requirements. We can add corona treatment to your materials as part of our Trade Conversion Services, enhancing the surface to improve adhesion for printing, coating or lamination.
Corona treatment increases the surface energy of plastic films, helping inks, coatings and adhesives adhere more effectively. The result is stronger bonds, improved print quality and a consistent finish: ideal for packaging, labelling, printing, laminating and converting where reliable performance and a high-quality appearance are essential.
Trade Conversion ServicesKey industries served
Trusted across food, packaging and beyond.
From chilled and frozen food to construction and print, our films are specified wherever products need to be seen and protected.
- 01
Refrigerated goods
- 02
Frozen foods
- 03
Fresh foods
- 04
Consumer packaging
- 05
Construction
- 06
Printing and packaging

PET packaging film
Lidding, sealing and barrier films too.
Beyond carton windows, we supply heat-sealable, peelable, anti-fog and metallised polyester films for lidding, top sealing and barrier laminates.
PET packaging film guideCommon questions
Questions, answered
Can't find what you need? Our technical team is happy to help.
Are your films environmentally friendly?
We supply standard films, and our Enviromex® films are biodegradable. We are continually introducing rigid films with high percentages of recycled polymers, and our technicians work closely with recycling plants, constantly looking for innovative recycling solutions.
Do you only supply packaging films?
No. We offer a wide range of technical, industrial and packaging films, depending on your requirements.
How do I know which solution is best for me?
Our technical team have decades of combined experience to advise you on the best solution for your specific application, and they will work closely with you throughout the development lifecycle.
How many window patches will a reel or a kilogram of film give?
The film calculator works out area, weight and yield for a film thickness, and sheets per kilogram for a patch size, so you can estimate how much window film a run needs.
Films that protect, preserve and present products at their best.
Partner with PSG for innovative specialist film solutions.
Our customers





