Suitable for producing absorbent, high-strength, ready for covering installation areas in a short amount of time. Filling holes and cracks in most types of substrate particularly screeds or concrete floors. High durability in residential, commercial and industrial areas. Suitable for hot water under floor heating and chair castor loadings according to DIN EN 12 529 from 1 mm compound thickness. For greater thicknesses, above 10 mm, the compound is best bulked out with up to 50 % (equivalent to 10 kg /sack) of dry Gilt Edge Quartz Sand, grain-size 1 – 2.5 mm.