A factory preblended commercial grade mortar containing portland cement, hydrated masonry lime and masonry grade sand. Formulated to provide superior bond, water retention, board life, workability and finish. Achieves higher strength and performance for residential, commercial, and industrial applications. Use for load bearing, structural construction in above or below grade, interior or exterior wall applications. Meets ASTM C-270 specifications, exceeds ASTM C-387 specifications.