Bostik Cempolay Flexi Deep Floor Levelling Compound is a high-performance, self-levelling smoothing compound, ideal for preparing a variety of subfloors before installing floor finishings. Suitable for thicknesses from 3mm to 60mm in one application, this product ensures a flat and even surface for subsequent flooring installation. This 20KG bag offers ample coverage for larger projects and is designed to provide excellent flexibility to accommodate the natural movement of the sub-floor.