GE Concrete Sealant is a high-performance, 100% silicone and 100% waterproof sealant that specifically designed for concrete, mortar, and stone projects. This 30-minute rain-ready formula offers permanent flexibility and excellent durability, and it comes with 10-year mold-free product protection to help resist mold and mildew growth. GE Concrete sealant provides a durable and long-lasting seal that helps your projects withstand harsh weather conditions. Its also resistant to freezing and sun. Use our concrete silicone sealant on wet or dry surfaces, including brick, stone, stucco, masonry, asphalt, concrete, cement, most metals, woods, and more.