HG tile cement grout film removerCement grout remover for all types of tiles and flagstones HG cement grout film remover 1L (product 11) is a cement grout remover that removes cement residue from all types of porous and non porous ceramic tiles and flagstones. But also from non calciferous natural stone types, such as Norwegian slate, granite and quartzite. For porous and non porous ceramic tiles and flagstones Also suitable for non calciferous natural stone types, such as Norwegian