Manufacturing processes for strong hydrophobic bio-materials with hot pressing technology
| Reference number | |
| Coordinator | RISE Research Institutes of Sweden AB - RISE Research Institute of Sweden AB |
| Funding from Vinnova | SEK 2 770 000 |
| Project duration | August 2023 - November 2025 |
| Status | Completed |
| Venture | The strategic innovation programme Bioinnovation |
| Call | Enabling technologies and processes for bio-based products |
Important results from the project
Yes, the project met its objectives to develop bio-based, water-repellent materials using hot pressing and to reach TRL 5 through pilot and full-scale trials. Wet strength increased by up to 30% of dry strength, water absorption was significantly reduced, and demonstrators were produced. An important spin-off is the development and testing of a lignin-based adhesive with the potential to replace fossil-based adhesives, enabling fully bio-based product solutions.
Expected long term effects
The project is expected to drive a fossil-free construction sector by replacing EPS and plastics with bio-based, water-resistant solutions. This will reduce climate impact, boost circularity, and create new value chains and business opportunities. The technology may also inspire innovations in packaging, batteries, and other industries, strengthening Sweden’s global competitiveness and enabling fully fossil-free products.
Approach and implementation
The project was carried out in three stages: laboratory tests to study the effects of hot pressing on wet strength and water resistance; pilot trials in a steel belt press to optimize process parameters and evaluate bio-based coatings and adhesives; and full-scale industrial runs producing materials and demonstrators. The approach relied on close collaboration between academia, research, and industry.