Fast Setting Cement Patcher is a preblended, fast setting mixture of special cementitious materials, additives and sand. Sets in 20 minutes. Use for the rapid repair of concrete or masonry substrates. Features: • High strength 5,000 psi • Sets in 20 minutes • Applications 1/4” to 2” in thickness • Open to foot traffic in 4 hours and vehicular traffic in 24 hours • Interior/exterior applications • Horizontal and vertical Use For: • Rapid repair of cracks in concrete slabs, driveways or sidewalks • Curbs • Repair broken concrete steps without using forms • Ramps • Concrete overlays • Large masonry crack repairs