A white acrylic emulsion-based liquid for use prior to application of Nicobond ceramic tile adhesives and floor surfacing compounds. Specially formulated for preparing porous or difficult cementitious floors and walls prior to the application of Nicobond ceramic tile adhesives, screeds and surfacing compounds. By reducing porosity of surfaces Nicobond Primer increases adhesion of cement based ceramic tile adhesive and surfacing compounds. Dries almost transparent and does not stain.