Concrete is porous and highly-absorbent, meaning dirt, oil, dust and even airborne particles and pathogens can be absorbed into your flooring resulting in a hazardous environment. Sealing your concrete surface not only helps to protect against stains and marks, it also makes concrete maintenance much easier. Sealing assists in preventing dirt, grime, salt, oils, graffiti and other contaminants from penetrating and damaging the surface.The sealers penetrate or coat the pores of the concrete which makes it harder for pollutants to fill the holes and make the surface look dirty.