Adhesion-enhancing, single-component, ready-to-use, solvent-free primer based on special dispersion. After observing the drying times a slightly tacky surface is achieved, which is ready for laying immediately. For preparing absorbent and non-absorbent substrates indoors and protected outdoor areas, as well as well sanded or shot-blasted mastic asphalt. As plaster primer suitable for absorbent, mineral substrates like cement, anhydrite and magnesite screeds (also for underfloor heating systems). Not suitable on PUR pre-coatings and unsanded as well as on OSB boards treated with Conti-Finish.