Sch?nox LC Powder and Liquid self-levelling compound screed for interior use that can be laid at a thickness of 3-20mm without aggregates, and 10-30mm with aggregates. 4.5 litres of Sch?nox? LC Liquid is applied to a 25kg bag of Sch?nox? LC Powder to create a latex- & polymer- modified levelling compound that is ideal for use below textile and other flexible floor coverings, as well as parquet flooring. It is ideal for use with underfloor heating systems, and can be used on concrete, rapid-hardening cement systems, cement screeds, gypsum screeds, new mastic asphalts IC10/15 (layer thickness up to 5 mm), and also old substrates such as ceramic/terrazzo. Foot traffic can be accepted after approx. 3 hours. Floor coverings (up to 5mm thick) can be laid after 24hrs.