A self drying, self-leveling concrete topping that installs quickly and easily indoors over concrete subfloors to provide a hard, smooth, flat surface. ARDEX SD-T can be installed from 1/4” to 2” in one operation, and ARDEX SD-T can also be tapered to meet existing elevations in places such as thresholds. For pre-leveling and areas to be installed from 2-5” thick, mix ARDEX SD-T with a washed and well-graded aggregate (1/8” to 1/4” pea gravel or larger). ARDEX SD-T can be walked on and coated with a sealer in as little as two hours after installation. Virtually zero downtime! ARDEX SD-T is also an excellent choice as a decorative indoor flooring surface, offering the ability to incorporate integral colors and unique surface treatments to create dramatic designs and patterns for use in retail, restaurants, museums, and more. 6100 psi compressive strength. Withstands heavy foot traffic - even rubber wheel forklift traffic. Coverage: (per 50 lb. bag) Approximately 25 sq. ft. at 1/4” thickness.