Crack sealant is a specialized material that bonds to the walls of the crack and can move horizontally and vertically with the pavement as it expands and contracts. It prevents the intrusion of water and debris into the crack and is specifically engineered to remain flexible at low temperatures so it does not crack or split open and remains stable at higher temperatures so that it does not track or bleed on the pavement. If your goal is to preserve your pavement for the longest period at the lowest cost, Mike Romano of Crafco, Inc. will give an overview of the reasons we believe a dollar spent on crack sealing returns more benefit than a dollar spent with other preservation treatments.