News Coatings Technologies
Natural fibre-reinforced wood coatings promise greater durability and sustainability for outdoor applications
The “NFHolzlack” research project led by the Institute for Wood Technology Dresden (IHD) is developing innovative outdoor wood coatings reinforced with natural fibres. The aim is to increase weather and mechanical resistance for façades, windows and doors while using renewable raw materials instead of energy-intensive fibres.
Conventional wood coatings can extend the service life of exterior components but remain vulnerable to hail, UV radiation and strong temperature or humidity fluctuations. Cracks in the coating often allow moisture to penetrate, leading to damage. The project “NFHolzlack” addresses this by embedding natural fibres into wood coatings. These fibres bridge microcracks and dissipate stress, helping coatings remain intact for longer, extending maintenance cycles and reducing repair costs.
A particular focus is on plant-based fibres from agricultural residues, which are currently underused or mainly used for energy recovery. Unlike glass fibres, they are less energy-intensive to produce and do not compete with food production. This opens up new value creation opportunities for rural areas while supporting resource efficiency and climate protection.
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Practice-oriented testing for next-generation coatings
The project takes a holistic approach, from coating formulation and application to durability testing under real conditions. The goal is to develop a new generation of wood coatings that reduce environmental impact while offering economic benefits for builders, craftsmen and industry. “NFHolzlack” is funded by the German Federal Ministry for Economic Affairs and Energy under the INNO-KOM programme (funding code 49MF240110).
Source: Institute for Wood Technology Dresden gGmbH. “NFHolzlack – Natural fibre-reinforced wood coatings for greater sustainability”. Press release, 08 October 2025.
