CARBOSHIELD PRIME is a single-component, solvent-based silane-siloxane primer designed for anti-carbonation protection of concrete and masonry surfaces. It penetrates deeply to provide superior water repellency, effectively preventing the ingress of carbon dioxide and chlorides. Highly recommended for alkali-sensitive substrates, CARBOSHIELD PRIME enhances the durability of concrete structures, cement plasters, bricks, lightweight concrete, and natural stone facades. It offers strong resistance to UV exposure, weathering, and freeze/thaw cycles, ensuring long-term protection. Easy to apply manually or by spray pump, CARBOSHIELD PRIME delivers an integral, durable seal that prepares surfaces for high-performance anti-carbonation coatings and extends the service life of structures.