CP-500W is a one component, VOC compliant, penetrating water repellent which contains a proprietary modified siloxane. This water-based siloxane penetrates most masonry and concrete pores and capillaries up to inch or more depending on surface porosity and moisture content at the time of application.

CP-500W reacts with the silica in concrete and masonry in the presence of ultraviolet light and atmospheric moisture. This reaction forms strong permanent bonds beneath the surface and creates a hydrophobic zone that prevents water molecules from penetrating, while allowing free migration of water vapors. The chemical bonds formed in this process allow CP-500W to become integral part of the substrate and provide long-term water repellent protection.

For instructions on how to use this product or MSDS, please go to the Technical Information section of our website.