Repair, re-slope, and reform interior and exterior floors and walls. Fast setting, trowel-grade patch for repairing andfilling surface defects in existing concrete. Great for ramps, loading docks, curbs, sidewalks, and stairs. Long pot life of 30 minutes can be extended with re-mixing. Install up to 1/2" in one application and up to 2" with the addition ofpea gravel to mix. Walkable in 2 to 3 hours, vehicle traffic in 4 hours, and sealable in 24 hours.