Testing confirmed that longitudinal joints in asphalt pavement, if not treated, would encounter cracking, raveling, and eventually fail due to water infiltration, thermal movement, and low density. They have found that Crafco's hot-applied modified asphalt composition effectively bonds paving passes together creating a watertight seal during thermal movement resulting in the improved long-term performance of the joint with no significant cracking. This product is also effective for waterproofing exposed edges of asphalt concrete pavement.