In UV ageing tests over 1,656 hours, the surface structure of the coating remained intact – the mechanical properties showed no loss whatsoever. Event tip: Bio-based Coatings 2025 – Eurasia Edition The EC Conference “Bio-based Coatings 2025” (Eurasia Edition) brings together experts and researchers focusing on sustainable and bio-based coating technologies. Sustainable raw materials, strong performanceIn addition to the increased UV stability, the coatings also impressed with their high adhesive strength and water resistance. The results emphasise the potential of plant-based additives to improve the performance of water-based PU systems. Tannic acid, a natural polyphenolic substance, offers an environmentally friendly alternative to synthetic light stabilisers thanks to its complex-forming properties.