exterior and interior, on absorbent, mineral, and organic substrates and coatings, for consolidating chalky but load-bearing existing paint coats and crumbling renders, for reducing the absorption capacity of gypsum plasterboards, porous and, absorbent substrates, e.g. plasters, renders, unfired masonry or, cellular concrete, highly suitable underneath all StoColor facade and interior paints, ideal underneath Lotus-Effect®, sol silicate, and silicone resin emulsion paints