Quikrete Pump Grade Base Coat Stucco is a fiber-reinforced, Portland cement-based stucco designed for use as the scratch and/or brown coat in a three-coat stucco application. The product is formulated with special additives to prevent the premature loss of mixing water and provide increased working time. The specially designed stucco is intended for use over code-approved metal lathe or solid bases such as masonry, cast-in-place or pre-cast concrete. The base coat can be applied with a trowel or sprayer according to typical stucco techniques. One 80-pound bag yields approximately 0.83 cubic feet of material. The stucco complies with ASTM C926 requirements for Portland cement-based plaster.