Levelling and smoothing compound suitable for use in heavy-duty areas. Suitable for the subsequent installation of textile and resilient floor covering of all types such as textile flooring, PVC/CV flooring, luxury floor covering, rubber flooring, linoleum,Cork. Also for installation of multi-ply wood flooring 3 Heavy-duty in residential and commercial areas, e.g. in office buildings, residential dwellings, nursing homes, etc. Hot water underfloor heating, loads from chair castors according to DIN EN 12 529 from 1 mm compound thickness.Suitable for use on cementitious screeds; calcium sulphate screeds or concrete substrates with well-bonded residues of adhesives and smoothing compounds; new, firmly bolted chipboard, existing ceramic and natural stone coverings, Terrazzo or similar (and dependent on age) old mastic asphalt as well as magnesia and xylolite screeds, precast screed and gypsum fibre board. Pumpable, for interior use.