Paint with mineral binders based on potassium silicate. Does not form a film due to its chemic al nature, but hardens by reacting chemically with the surface. It is characterized by a high diffusion of water vapour such so as to ensure the transpiration that is required to obtain dry walls, making it suitable for finishing of dehumidifying systems. Its quality ensures high security and resistance of the colour outdoors and allows it to fill the surface obtaining a compact homogeneous finish, with uniform opacity. These features make it suitable for facades of buildings both new and historical.