Tough Tile is a thick tile and vinyl cleaning gel that stays where you put it to fully clean vertical surfaces! Make cleaning easier, faster and more thorough. Tough Tile has been formulated with a gel consistency so it can cling and penetrate to remove dirt and stains. This allows it time to clean thoroughly and deeply, leaving your tile line, gutters or liner looking like new. Tough Tile has amazing versatility – it removes stains, grease, lotion, grime, calcium build-up and more. It is ready to use “as is” or dilute it with water for light tasks. For enhanced adhesion to tiles and other vertical surfaces, thicken this product by adding muriatic acid. Tough Tile is flexible and simple to use.