Siegwerk achieves home compostability certification

Siegwerk has secured the certification of its Cirkit Natubar PR4798 and Natubar CT4326 water-based coating for home compostability in compliance with EN 13432, issued by TÜV Austria.

The Cirkit Naturbar PR4798 and Cirkit Naturbar CT4326 are water-based coatings formulated with non-modified natural polymers, designed to enhance water and grease resistance in packaging applications, today mainly used for paper plates to replace lamination.

These coatings not only allow the final packaging to be in full compliance with the European Packaging and Packaging Waste Directive (PPWR) 94/62/EC and the US regulation Model Toxics in Packaging Legislation, but are also exempt from the Single-Use Plastics Directive EU 2019/904.

The coatings are 100 percent biobased carbon, sourced from natural resources and certified for home composting, which ensures that they can be composted at home without harming the environment.

Both coatings are fully repulpable and have been tested according to the PTS method PTS-RH:021/97 cat II and CEPI Lab Test method v2, achieving a CEPI-scorecard result of 100 percent. They are formulated using non-modified natural polymers approved for use in food, the coating is safe for direct food contact and has been certified by independent laboratories.

‘Achieving TÜV Austria certification for home compostability is a key milestone in our circular economy efforts. It shows we're meeting future packaging regulations with high performance and environmental responsibility,’ said Gilles LeMoigne, business unit head of circular economy coatings at Siegwerk. ‘By offering a coating solution that is recyclable, compostable and biobased, Siegwerk continues to lead the industry in providing environmentally friendly packaging solutions.’