Showcase 2021

25-27 de novembro de 2021 | Marina da Glória - Rio de Janeiro, RJ



Bio-Based Resins for the Serial Processing of Fibre-Reinforced Components – BioResinProcess  

Car body parts made of at least 85% renewable resources 


Conceptualization and development of car body parts made of at least 85% renewable resources with a view to road approval.


The project partners are working on the development of a sustainable car body part. It should have an organic content of at least 85% and be composed of the natural fibre reinforcement, a bio-based resin and a bio-based coating. In addition, it should be possible to process the bio-based material in the industrial RTM (resin transfer moulding) process. There will be a life cycle assessment for the entire manufacturing process.

The cooperation partners Fraunhofer WKI, HOBUM Oleochemicals GmbH, Porsche AG and FourMotors GmbH will deduce the material potential of bio-based fibre composites based on the technical specifications for the production of road vehicles
and carry out extensive development work, particularly in the areas of surface quality and material deformation under stress. By doing so they want to get the biogenic materials to the required technical level. This would provide the necessary knowledge for a successful transfer to industrial series production upon the completion of the project.

Status Quo:

In order to develop efficient and low-emission vehicle concepts, lightweight construction is required, i.e. weight reduction without restricting technical performance. As a material group, fibre composites have the greatest potential for lightweight construction. High-performance fibres, for example, carbon fibres provide high strength and rigidity, and have a low weight, which makes them predestined for use as a lightweight construction material. However, the disadvantage is that producing them is very expensive and requires a lot of energy, which has a negative effect on their CO2 balance.


Biocomposites are suited for cost-effective lightweight automotive construction. They display good damping and favourable splintering behaviour in crash testing. They also have low energy consumption in comparison to other fibre-reinforced composite materials and thus a better CO2 footprint.

They represent one of the building blocks in achieving CO2-neutral automobile production, a goal that the European Union has set itself for 2050.

1. Natural fiber reinforced composite materials – test samples
Photo: Mirko Krenzel/Fraunhofer

2. Porsche Cayman GT4 with body parts natural fiber reinforced materials
Photo: Norbert Breuer / wpr

Project Data and Partners:

Subproject 1: Materialentwicklung und Prozessanpassung,
Fraunhofer-Institut für Holzforschung, Wilhelm-Klauditz-Institut WKI

Subproject 2: Entwicklung biobasierter Härter für Epoxidharze auf Basis von pflanzlichen Ölen,
HOBUM Oleochemicals GmbH

Other Project Participants:

• Porsche AG
• Four Motors GmbH
• Hochschule Hannover, IfBB
• SGL Composites GmbH
• Time Out Composite oHG

Project Duration:

October 2020 – September 2023

Further information can be found here:

Subproject 1: 2220NR094A
Subproject 2: 2220NR094B

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