Weilburger Graphics is presenting a cardboard drinks cooler that is waterproof and recyclable in a new demo project. In future, it could also keep fresh fruit or other food cool.
Weilburger Graphics, an international manufacturer of coatings, flexographic printing inks and adhesives based in Germany, offers a sustainable alternative for food and beverage packaging with this new development. Cardboard cooler with a completely new waterproof coating. A stable and lightweight virgin fibre board from Metsä Board was used for the material.

The beverage packaging is supplied with a cooling tray that can hold up to 500 grams of crushed ice or cold water. In combination with MetsäBoard Prime FBB EB 265 g/m², the the new water-based barrier coating Senolite from Weilburger Graphics is used to keep the water in the radiator.
„Many of our customers, particularly in the food, refrigeration and frozen food sectors, are looking for environmentally friendly packaging solutions that are also safe for direct contact with food. Often these solutions need to be waterproof, and this cooling packaging shows how this can be achieved.“ Arno Dürr, Sales manager at Weilburger Graphics Ltd.
Beverage cooler with watertight barrier
The main part of the box, including the base and lid, is made of MetsäBoard Classic FBB 340 g/m², while the special cooling tray and the compartment divider that can be inserted for easier filling are made of MetsäBoard Classic FBB 340 g/m². made from the new MetsäBoard Prime FBB EB 265 g/m² barrier board were constructed.

„Both the idea and the realisation were a success. The result is a sustainable alternative to conventional beverage packaging methods. In the future, this type of water-based barrier packaging could also be a cooling option for fresh fruit and other foods,“ says Gabriel Goldmayer, Account Director at Metsä Board.
Virgin fibre cartons typically tolerate moisture better than cartons made from recycled fibre. They are also lighter and therefore have a lower carbon footprint. After use, they are recyclable and thus contribute to the circular economy.
SourceMetsä Board

