Smith’s Cleaner & Toughener is a dual purpose product designed for the preparation of exterior textured concrete surfaces to receive Smith’s Color Floor. Initially Cleaner & Toughener acts as a detergent to clean the concrete surface. Secondly, Cleaner & Toughener toughens the surface fo the concrete by interacting with weak spots resulting from un-reacted calcium hydroxide. Cleaner & Toughener is recommended for the surface preparation of exterior textured concrete. For more infomation please see the Cleaner & Toughener Data Sheet.