Waste to Worth: Innovating rubber compounds for injection moulding from forestry residues – step 1

Category: Hypothesis testing projects

The project ran between October 2024 and April 2025.

In this project, Reselo AB developed a novel bio-based rubber from birch bark and explored its compatibility with conventional rubber and TPE’s. The project showed that Reselo Rubber can be successfully blended with traditional rubber compounds, maintaining key mechanical properties and enabling partial replacement of fossil-based content.
Additionally, Reselo Rubber was incorporated into thermoplastic elastomer (TPE) formulations with favorable flexibility and durability. Both the rubber and TPE blends were successfully processed using standard injection molding techniques, demonstrating good flow, moldability, and part quality. These results confirm the potential of Reselo Rubber as a sustainable alternative for use in rubber and TPE applications, supporting the transition to more environmentally friendly material solutions.

Photo: Samples of Reselo’s bio-based rubber in various geometries, produced via injection molding. The sample represents a complete formulation package, including material recipe and validated technical performance data.

Participants

Reselo and KTH, Polymeric material group of Department of Fiber and Polymer Technology.

Budget

The project’s total budget was 870 KSEK.