ARDEX K 15 is used to level and smooth interior concrete substrates, terrazzo, ceramic and porcelain tile, epoxy coating systems, wood and metal substrates, and non-water soluble adhesive residue on concrete prior to the installation of the finish coat, on grade, in basements, or on floors. Designed specifically for rapid floor leveling, ARDEX K 15 produces a smooth, flat, durable floor surface with minimal labor and installation time.