3M™ Scotch-Weld™ Concrete Repair DP600 is a quick-curing, two-component polyurethane adhesive designed to repair cracks, spalls, and breaks in concrete, masonry and stone. This rapid-setting concrete adhesive hardens in as little as five minutes, eliminating down time without lengthy disruptions to day-to-day services.Our 3M Scotch-Weld Concrete Repair DP600 is ideal for repairing cracks and spalls in concrete, masonry, pool decks, patios, custom tapping of bolts and screws into a variety of substrates, and setting anchors in horizontal surfaces. The two-part adhesive bonds through a chemical reaction that cures to any depth without cracking. And once mixed our formula resists weathering, expansion, and contraction. This product is gray in colour, and may also be sanded to eliminate rough edges, for refinement, or to provide a smoother finish. Our 3M Scotch-Weld Concrete Repair DP600 is a two-part component system. Our Duo-Pak cartridge keeps the components separate until ready for mixing to maximize working time. With the squeeze of a trigger the components are automatically mixed with our innovative mixing nozzle and easily dispensed precisely where needed without an unwanted mess. The bubble-free liquid begins curing immediately while also self-leveling to create a tough, non-brittle bond. Our fast curing concrete repair formula provides a one-minute work life.