Commercial grade, specially formulated polymer modified concrete repair mortar, for making structural repairs in vertical and overhead applications to concrete, masonry, or stucco surfaces. Exceeds requirements ASTM C-928 R-2 for structural concrete repair materials. 20 to 30 minutes working time, can be sculpted to match the contour of existing concrete surfaces. Use for repairing pre-stress panels, loading docks, tunnels, retaining walls, bridge columns, and curbs/steps. Large vertical or overhead patches deeper than 2" should contain reinforcing steel. Contains Portland cement. Ready-to-use, just add water. 20 lb. pail.