Primex has introduced its newest innovation, Prime Sulapac sheets.

Developed by Helsinki-based Sulapac Ltd, an award-winning material innovation company trusted by global luxury brands, Sulapac is made from a bio-based material that offers a safe, sustainable and high-performance alternative to traditional plastics.

By combining biomaterial and sustainability expertise, extrusion excellence and industry experience of the two companies, the partnership has potential to accelerate the green transition of the packaging industry at scale.

Aesthetic Appeal

The Sulapac material, now offered as customizable sheets by Primex, is a combination of wood from industrial side streams and biodegradable biopolymers. The unique composition delivers the aesthetic appeal of natural fiber products with the durability and functionality of plastics – ideal for thermoforming and a wide range of applications.

The Sulapac solution for thermoforming features a high bio-based content and is industrially compostable, certified by BPI. The material has a low carbon footprint and can be mechanically recycled, helping to minimize waste and fight climate change. Further, it leaves no persistent microplastics or toxic chemicals behind.

“Our key design principle is to create materials that are safe for people and the planet. To ensure this, we conduct rigorous testing – with internal standards often lightyears ahead of regulation,” said Joona Kontinen, Sulapac’s growth & innovations manager.

Operational Efficiency

Unlike other bio-based materials that require strict temperature control during manufacturing, Prime Sulapac offers natural insulating properties that allow for a broader and more forgiving processing window. This results in greater manufacturing flexibility and fewer production challenges.

Its lower thermoforming temperature requirements can result in up to 20% energy savings due to shorter heating times, leading to reduced production time and increased operational efficiency.

Versatile Applications

Frequently used as a replacement for traditional plastics like PS, PP and PET, Prime Sulapac excels in packaging inserts and other thermoformed products including point-of-sale displays, logistic trays, single-use food packaging and blister cards.

Prime Sulapac provides a smooth surface, offering a refined aesthetic for high-end applications.

“At Primex, we believe sustainability should never mean compromise,” said Kees Bras, VP, sales at Primex. “With Prime Sulapac, we’re offering our customers a material that is as responsible as it is reliable—and as beautiful as it is biodegradable.”