Masonry paints have two roles to play as facade coatings: first, as an important architectural aid they act as eye-catchers and can make a building either stand out from others or blend into the surroundings. Second, they provide protection against moisture and harmful environmental effects. But paint is exposed not only to chemical, mechanical and biological attack from the outside, but also to attack from within the building material itself.

Silicone resin emulsion paints (SREP^®) are leading-edge facade-coating systems. They are hugely successful because they marry the outstanding properties of mineral paints with those of synthetic-resin paints. Foremost among these are very high water-vapor permeability, very low water absorption and extreme longevity. Silicone resin emulsion paints thus actively contribute to preserving the value of every structure. In its SILRES^® BS series of raw materials, WACKER offers a swath of resins, water-repellent additives and primers for formulating silicone resin emulsion paints and optimal coating systems.