A rapid setting, quick drying smoothing compound for repair, filling and patching. It can be used on a variety of substrates to repair subfloor imperfections prior to the installation of most flooring products. Portland cement-based.
 
New or old cement leveling compounds
Existing substrates with well-bonded, non-water-soluble adhesive residues (including properly prepared cutback adhesive residues)
Ceramic tile and natural stone
Concrete, masonry, wood, terrazzo, ceramic and quarry tile
All standard slabs, concrete or other substrate types
Radiant floor heating systems