The SL 400 serie includes the Herculan solvent-free polyurethane self leveling resin floors. These self leveling floors are finished with a transparent PU coating from the Herculan range, which makes them highly light fast. The SL 400 systems are suitable for various surfaces, such as concrete and sand cement. Depending on the requirements and wishes, various system varieties are possible. The systems ensure a seamless and liquid tight finish of the floor. The products the systems consist of are environmentally friendly, durable and highly wear-resistant. The systems are easy to maintain and available in many colours.