Shot blast or mill, remove slurry coats and labile areas, check substrate and seal against rising damp, and level off. Raw concrete floors always present a significant risk of fault liability and irreparable damage. Thomsit AntiAqua Seal System not only ensures necessary preparation for laying, it forms a significant part of the matched components designed to combat moisture and protect against faulty workmanship liability and reclamation.
Prime the substrate with two coats of Thomsit R 755 Epoxy Membrane as a precaution against residual moisture and rising damp. Sprinkle dry quartz sand (grain size 0.3-0.7 mm) over the freshly primed substrate. When installing a damp course, sprinkle sand only in the second coat of primer. Level off with Thomsit SL 85 Special Purpose Levelling Compound.
Use Thomsit P 618 Dispersion Wood Flooring Adhesive.