Multi Surface Waterproofer for Stucco, Brick, Masonry, Wood, Concrete, ClearProtect Your Stucco, Brick, Masonry, Wood, and Concrete with Insl X Multi Surface Waterproofer. Insl x Multi Surface Waterproofer is a penetrating, siloxane based water repellent. Once fully absorbed and dry, this clear waterproofer will seal and protect the surface without changing its visual appearance or texture. Features Protects and seals Dries clear with no visible change to the substrate Penetrating siloxane based formula Easy soap & water