Bostik - Exterior Waterseal - 5L - Masonry and Wood Treatment

Bostik

Protect your exterior surfaces from moisture damage with the Bostik Cementone Exterior Waterseal. This professional-grade, high-performance treatment is designed to penetrate deep into porous materials, creating a powerful barrier that effectively repels water. By forming an invisible shield, it prevents common issues such as rain penetration, damp, condensation, efflorescence, and frost damage, significantly extending the lifespan of your building materials. The formula is designed to remain breathable, ensuring moisture trapped within the structure can still escape while maintaining the natural appearance of the substrate. This versatile waterseal is perfect for a wide range of surfaces, including brick, concrete, stone, slate, terracotta, render, and timber. With its fast-drying properties, it offers efficient protection in a single coat and can be applied easily using a brush, roller, or low-pressure spray. Product Summary: 5-litre professional exterior water repellent for concrete, brick, stone, and wood surfaces, offering long-lasting moisture and frost protection while maintaining surface breathability.