Concrete Sealer N is a novel single component water based sealer based on Nano technology, which has excellent stain resistance to the floor finishes such as concrete, Self-levelling overlayment, cementitious terrazzo and other cement based surfaces due to spillage and penetration of varies common contaminants found in grocery complexes, school cafeterias and restaurants. Concrete Sealer N is a low odor, VOC compliant, penetrating sealer that effectively protect cement based surfaces from the damaging effects of staining, defacing and deterioration due to contaminants penetration.