UltraTile ProGrout Epoxy is a water-based epoxy resin grout for waterproof, stain resistant grouting of porcelain tiles, ceramics, natural stone (compatibility to be checked prior to grouting) and glass mosaics to revolutionise your grouting requirements. Suitable for wall and floor tiling in environments where hygiene is key such as kitchens and hospitals, as well as, wetrooms and swimming pools.