Concrete, Terrazzo & Stone Impregnator is a water based, non-fluorinated penetrating sealer that gives protection against both water and oil borne stains on concrete, cement-based terrazzo, natural stone and grouted surfaces. The small particle size allows for deeper penetration into the pores for a breathable, long-lasting barrier that is UV and weathering-resistant for indoor and outdoor use. Concrete, Terrazzo and Stone Impregnator is durable to withstand heavy traffic and resist dirt pick up.