HG Tile Cleaner Extra Strong Removes real problem dirt HG tile cleaner extra strong is a professional and extremely powerful tile cleaning product for removing real problem dirt or (old) wax, polish and other protective coatings that are very difficult to remove. This tile cleaner extra strong removes stubborn grease, dirt and other problem grime from floor tiles, flagstones and all types of natural stone. This extremely powerful tile cleaning product from HG is also suitable for use with a scrubbing machine. 1 litre is sufficient for approximately 35 to 70m2 of floor surface, depending on the amount of dirt.