EU Project Developed Lightweight Transport Biocomposites
The Forest project validated new material combinations that offer significant weight and cost reductions for automotive and aerospace sectors.
Updated on Oct. 2, 2026 in Materials Science

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The EU-funded Forest project has developed and validated three lightweight biocomposite prototypes designed for use in buses, aircraft, and automobiles. The research initiative demonstrated significant performance improvements across energy use, manufacturing speed, and sustainability metrics.
Why it matters
By integrating bio-based feedstocks and recycled carbon fibers, the project seeks to improve overall transport efficiency and lower lifecycle emissions. These results establish a pathway for adopting circular manufacturing practices in industrial transport sectors.
The researchers achieved weight reductions of up to 35% using components with over 50% sustainable material content. A newly developed bio-benzoxazine resin system reached 85-87% renewable carbon, while a secondary bio-acrylic resin system achieved 25% bio-based content.
The players
Aimplas
A Spanish technology center specialized in plastics and sustainable material research that acted as the project lead.
European Union
The intergovernmental organization that provided the funding required to execute the Forest project.
The details
The team utilized one-shot manufacturing—a process that forms a finished component in a single molding step—combined with accelerated curing chemistry to speed production. The composites were engineered by blending bio-based feedstocks, functional additives, and up to 100% recovered carbon fiber waste. This architecture allows for structural integrity in high-stress environments like buses and aircraft while simultaneously reducing engineering costs by 15-20% and energy consumption by 15-25%.
Timeline
October 2026: The Forest project concluded its activities.
The Tech Race
This development aligns with the broader European push to decouple transport manufacturing from fossil fuel-based supply chains. It represents a significant milestone in validating bio-based resins against the high-performance standards required by the aerospace and automotive sectors.
This technology is currently at the research and validation phase and is not yet available for direct consumer purchase. Once adopted by manufacturers, these lighter components are expected to improve fuel efficiency and lower the carbon footprint of public transit and commercial air travel.
The takeaway
The Forest project demonstrates that biocomposites can meet performance requirements while cutting manufacturing energy use by up to 25%. Industry observers should monitor upcoming sustainability reports from automotive and aerospace partners for evidence of these resins entering pilot production lines.
Further reading
For more on the latest research in the field, see our Materials Science section.
Source note: This article includes information reported by PlasticsToday.
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