Professional SLC 1550 FLEX is a single pack, fast-drying, universal renovation screed with fiberflexTM microfibre technology. It is manufactured from a controlled blend of special sands, cements and synthetic polymers to give a high quality flooring product which is self-levelling and smoothing. For use in fast track domestic and commercial situations, such as, where levelling of up to 50mm is required or for use over underfloor heating and on more difficult substrates, e.g. timber.