Waterproofing system composed of hydraulic binders and special additives (comp. A) and synthetic polymers in watery dispersion (comp. B) to mix at moment of use. Apply in two coats. Place a reinforcing non-woven fabric (MAT 250) on the first coat when still fresh. Completely hardened, it forms a waterproof membrane that is flexible and elastic, even at low temperatures. It is easily applicable by a roller or brush, also on intricate and vertical surfaces. Strong adhesion to cement supports in general and supports with poor absorbency, such as old floors.