A high performance VOC free water-based impregnating grout sealer designed using the very latest technology in fluorochemistry. This versatile and easy to apply penetrating and invisible sealer provides a durable, non-film-forming protective barrier on wall and floor grout joints, porous acid sensitive surfaces including polished and unpolished natural stone, paving, concrete and render. ROCATEX C-10 Ultimate Grout Sealer allows the surface to breathe and provides excellent oil, grease and water repellency, stain resistance and ease of cleaning.