Sealcoating Supplies - Asphalt Kingdom- Wholesale road crack sealing machine ,Commercial grade sealcoating supplies delivered to your door. Quality asphalt sealcoat, crack filler and asphalt paints. Best quality. Best price guarantee.Pavement Crack Sealing | CRAFCOCrack sealing uses specialized materials that bond to the walls of the crack, while being able to move with the pavement as it expands and contracts, preventing intrusion of water and debris into the crack.