Crack Sealing – B & S Road Maintenance- road maintenance crack sealing ,B & S Road Maintenance is equipped with state-of-the-art paving equipment, we have full-time asphalt and seal coating crews on call.Maintenance - scdot.orgCrack Sealing is the filling of moderately sized cracks with hot liquid rubberized asphalt material. This seals the cracks in the road surface and reduces the amount of moisture entering the subsurface layers and thus extends the pavement life.