3M™ Scotch-Weld™ Concrete Repair DP600NS is a quick-curing, two-component polyurethane adhesive designed to repair cracks, spalls and breaks in concrete, masonry and stone. This rapid-setting concrete sealant sets in as little as five minutes, eliminating down time without lengthy disruptions to day-to-day services. Full in cure one hour.Our 3M Scotch-Weld Concrete Repair DP600NS is ideal for repairing cracks and spalls in concrete and masonry, pool decks, and patios, custom tapping of bolts and screws into a variety of substrates, and setting anchors in horizontal and vertical surfaces. This two-part non-sag 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 grey 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 DP600NS 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.