Sikaflex Gray Self-Leveling Sealant, 29 oz. is a premium-grade, single component polyurethane sealant designed for horizontal expansion joints in concrete and cement slabs. This self-leveling sealant features an accelerated curing capacity, allowing it to be applied on green or new concrete just 24 hours after curing. It can also be used on concrete that has been wet, as long as the water source has stopped for at least one hour. Sikaflex Gray is capable of bridging gaps up to 2 inches wide without the need for tooling, making it a convenient and effective solution for sealing and protecting concrete surfaces. Model Number: 515302