KKF-Gesellschaft UG is developing an innovative system of sustainable bio-based adhesion promoters and paints based on liquid cellulose. Partners in the cooperation project are the Bauhaus University Weimar (coordinator) and Sieder GmbH Plauen. The aim is to develop paints without petroleum-based polymers on the basis of bacterial nanocellulose; they should also contain no toxic biocides. These bio-paint systems can be used on damp substrates with varying moisture levels.