The wood foams developed at Fraunhofer WKI consist of 100 per cent wood, as they require no binding agents. They are a lightweight wood-based material with an open-cell structure. Their strength derives from the wood’s own binding forces, meaning that the use of synthetic adhesives is not necessary. From both an ecological and economic perspective, wood foams are ideally suited to a wide range of applications, such as packaging material or for thermal and sound insulation. They can be easily recycled. As a core material for new hybrid materials, wood foams also open up new possibilities for the use of renewable raw materials, particularly for eco-friendly lightweight construction applications. Wood foam can be combined with traditional wood-based materials, metals, concrete, plastics or even WPC as a surface layer.
The exhibit on display at HMI 2026 showcases wood foam in the form of a commercially available front door. Here, the wood foam serves as a fully biodegradable front door core.
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