Concrete surfaces, similar to asphalt, are quite pores; this causes concrete surfaces to be susceptible to damage from penetration of oil, gas, and other chemicals. Dirt and spills easily penetrate the surface causing noticeable stains and erosion of the concrete surface. Unlike asphalt, concrete cannot be easily patched up; therefore, it is extremely important to protect your Investment from the start. Sealing is essential in the maintenance, preservation, and aesthetic appeal of concrete surfaces.