An integrated surface coating is a product for porous materials (wood, concrete...) that does not create a film (also called non-filmogenic). It can be compared to varnish and paint. The major difference lies in the microporosity of the film created. Paint or varnish will create a blocking effect on the supporting material, which can cause peeling of the exterior film. An integrated surface coating, due to its composition, will allow a good exchange between the supporting material and the atmosphere, which allows materials to "breathe", and thus avoids peeling.
Examples of integrated surface coating.