HG wall and floor grout protector makes grout fully repellent to water, oil, grease and dirt. It ensures that stains can no longer penetrate into the grout, and the grout stays clean and beautiful. Grout is porous, which means that it can absorb grease, dirt and scale very easily. That produces stubborn stains. For example by spilling on the floor or due to mould or limescale. HG wall and floor grout protector produces a colourless protective coating that prevents these nasty stains.