Silicone primers are designed for outdoor use, creating a water-repellent coating that effectively protects surfaces from moisture, temperature changes and precipitation. They are ideal for facades, walls, roofs and other external surfaces, providing long-lasting protection and improving the adhesion of finishing coatings. Silicone primers maintain vapor permeability, allowing the surface to "breathe" and preventing moisture accumulation inside the material. This makes them especially effective for protecting external surfaces exposed to aggressive climatic conditions, such as rain and frost.