Dull matt interior wall paint formulations still pose great challenges. The morphology of platelet-shaped tobermorite and rod-shaped xonotlite CSH minerals, in conjunction with specifically designed particle size distribution, opens up new possibilities to improve the quality of such interior dispersion paints. The classification of these paints (DIN EN 13300) is based on specific requirement criteria with regard to opacity, wet scrub resistance and matting [1]. Synthetically generated CSH minerals are valuable multifunctional fillers, used successfully in paint and coating applications, as well as in the construction chemicals and paper industries. A hydrothermal manufacturing process ...