CEMEX 1410819 Broco for Stucco 80 lbs - Broco High Strength Masonry Cement when mixed with the recommended volumes of sand (ASTM C-897) will produce a stucco mix that will comply with the proportion requirements for the "Application of Portland Cement-Based Plaster, ASTM C-926." This cement is great for all general purpose applications. Note: Freshly mixed cement or mortar may cause minor skin irritation. Avoid direct contact where possible and wash exposed skin areas promptly with water.