Siloxane water repellent with water-based nanoparticles for mineral supports. Excellent penetration Invisible. It does not film and does not modify the appearance of the support. Microporous, waterproof and transpires water vapor. Self-cleaning, keeps the surface clean and free of dust and dirt. Avoid the formation of salts. Resistant to mold. Ideal for facades of exposed work stuccos, fiber cement, natural stone, etc. In the application on paints and coatings to water or solvent, reinforces the hydrophobic performance. VOC 1- 2010 30g / l.