• Renewable functional fillers

Moving to a lighter and more sustainable future

Achieve new performance levels while putting lighter burden on the environment

Renewable functional fillers provide superior technical performance and sustainability

Functional fillers derived from wood-based raw materials offer your products light weight and purity without compromising performance.


Climate change, raw material scarcity as well as regulatory and consumer pressure are key drivers for replacing fossil-based materials with new renewable solutions.

To address these needs UPM has developed revolutionary, renewable functional filler systems for light­weight applications. The new fillers feature diverse additional performance benefits like significantly lower material density in combination with electrical insulating properties, highest level in purity and lack of polycyclic aromatic hydrocarbons.  

Moreover, the functional fillers are demonstrably long-term biodegradable and do not cause additional negative impact to the nature.

If incorporated and dispersed into solid matrices like rubbers, thermoplastic elastomers and thermoplastics, their processability can be significantly improved and the polymer properties enhanced. The superior properties facilitate the transition towards a more sustainable future.

Why choose our renewable functional fillers?


Feedstock for renewable functional filler production is based on responsibly sourced wood from sustainably managed forests.

Low density

Material density is 1.4 g/cm3 and hence at least 25% lighter when compared to conventional filler systems used by the rubber industry.

Electrical insulation

Renewable functional fillers are 100% electrically non-conductive.

Technical performance

Renewable functional fillers impart strength to the final applications.


Meets highest purity requirements in terms of sulfur and PAH content.

Thermal stability

Thermally stable up to high temperatures.


Basic chemical composition of renewable functional fillers provide protection against UV radiation and oxidation.


Wood-based functional fillers are demonstrably long-term biodegradable.


Solutions for various industries and applications

Our renewable functional fillers can be used in a wide variety of applications and industries. Are you interested in hearing more?