Silicone resins and paints
Silicone paints contain as a binder, in addition to silicone resin, do 50% dispersion (relative to the binder content). What tasks does this dispersion additive fulfill??
Admittedly, silicone resins show, with very good gas permeability, optimal water repellency, but they do not have sufficient pigment binding strength. Were it not for the addition of dispersion, there would be severe chalking and dirtying of the coating.
What substrates are silicone paints suitable for??
Silicone paints are suitable for coating facades made of all types of mortar. Any old coatings with good adhesion also provide a suitable substrate for them. However, due to the particularly good carbon dioxide permeability, these coating materials should not be used on concrete, because they hardly limit its carbonation.
What advantages and disadvantages do silicone paints have over silicate or dispersion paints?
Silicone paints exhibit the relatively highest water repellency. Diffusion capacity is greater than that of dispersion paints, but not that good, like silicate.
Silicate paints combine under ideal conditions with the mineral substrate. Silicone paints adhere to the substrate, similar to dispersion, by adhesion.
Silicone paints, similar to dispersion, they are easier to use than silicate ones and can also be applied over old dispersion paints with good adhesion to the substrate, no risk of chipping.