HG natural stone impregnating protector is a special pre-treatment for marble and other types of natural stone such as travertine, bluestone, etc., but is also extremely suitable for concrete tiles with pieces of natural stone incorporated, such as granito and marble composite. This unique product penetrates deep into the pores of the natural stone and thus stops the absorption action. This prevents the penetration of dirt and (grease) stains, without affecting the original character of the natural stone or sealing off the floor from moisture from below, so the floor can continue to "breathe", as it were. This product contains no silicones, dries quickly and can be used both indoors and outdoors. 1 litre is good for 10 to 50 m², depending on the porosity of the floor.