Bostik Quick Drying Black Roofing Waterproofer, supplied in a 10L tub, is designed to provide reliable and effective waterproof protection for flat or pitched roofs. This high-performance roofing waterproofer forms a durable, flexible black coating that helps prevent water ingress on roofing felt, asphalt, concrete, and metal surfaces. Its quick-drying formula ensures faster project completion by allowing overcoating within hours of application. Suitable for both repair work and new installations, Bostik’s waterproofing solution is easy to apply by brush or roller and offers long-lasting protection against harsh weather conditions.