QUIKRETE® Scratch and Brown Fiber Reinforced Stucco is a Portland cement-based stucco designed to be used as the scratch and brown coat in a 3-coat stucco application, or as the brown coat in a 2-coat application. It is a Portland cement based stucco used for the construction and repair of stucco walls. The synthetic fiber-reinforced plaster resists shrinkage cracking and has very low sag characteristics.