Lotexan is a water repellent impregnation to reduce the water absorption of porous building materials. Low-molecular siloxane in hydrocarbon mixture, Siloxane concentration 8%. Used to give protection from water for Purkristalat coatings, colourless impregnation of all mineral surfaces such as natural stone, renderetc. also after strengthening with Silex OH. Can be used as a water repellent system onto untreated surfaces.