The three-side seal: The customizable and eco-designed classic of flexible packaging

The three-side seal, also known as a flat pouch or 3-seal pouch, is an essential packaging solution that combines simplicity and performance. Perfect for preserving and showcasing your products, it is suitable for the food and beverage, cosmetics, home care, and industrial sectors alike.

I have a project !

The three-side seal: Simplicity that makes a difference.

Compact and practical, the three-side seal meets the needs of brands seeking a high-performance and aesthetic packaging solution. At Sealester, we combine manufacturing quality with customization options to create packaging that protects and enhances your products.

Customisable pouch formats

Innovative and eco-designed flat pouch

A wide range of accessories 

sachet plat avec zip, trou européen et amorce de déchirure

Discover our accessories                                                                                                                                    Find out more

Our different materials

Recyclable monoplastic, matte white, glossy, transparent

Mono polymer

  • Humidité
                                                               
  • Oxygène

  • Graisse

  • UV

Innovative apple paper pouch

Apple paper composite / PE

  • Humidité

  • Oxygène

  • Graisse

  • UV​
  •                                                   

Recyclable brown or white kraft Doypack

Paper composite / PE

  • Humidité

  • Oxygène

  • Graisse

  • UV

Our packaging are flexible for different types of products

It's just a short step from eco refills for powder cosmetics to flexible packaging for clothes.

Liquid products

Customised flexible packaging for liquid products  

Find out more

Solid Products

Customised flexible packaging for solid products is possible
 

Find out more

Powder products

Customised flexible packaging for powder products 

Find out more

Our achievements 

la crème libre refill

 La crème libre

apt care flexible packaging

 APT Care

refyld refill

Refyld

La Bruket flexible packaging, Doypack with spout

L:a Bruket