Lanco 5 Gal. Ultra Level Self-Leveling Roofing Repair Compound Mortar Underlayment

Ultra Level is a polymer modified mortar underlayment. This cement based self-leveling, only needs water to form a free flowing liquid mortar that seeks its' own level, thus producing a smooth, hard, flat surface free of cracks and imperfections. It is designed to eliminate areas that accumulate water and will correct imperfections, seal cracks, smooth rough surfaces and cause rain water to flow in a desired direction.