HG cement, mortar & efflorescence remover product 12, 1L. HG Tile Grout Remover effectively removes stubborn cement grout film and dissolves mortar residue from all types of porous and non-porous tiles and flagstones. The tile surface cleaner takes away mortar residue from tiles, but won't damage the grouting between the tiles - it even helps strengthen it. Suitable for a wide range of tiles: Can also be used for maintaining non-calciferous natural-stone types, such as Norwegian slate, granite and quartzite. Easy to use tile grout cleaner: The tile floor cleaner works fast to remove stubborn residues. A handy heavy duty kitchen, hallway, living area or bathroom tile cleaner. 1 x HG Tile Grout Remover, 1L.