HG natural stone impregnating protector is a special pre-treatment for marble and other natural-stone types, including travertine, bluestone, hardstone, etc. The product is also extremely suitable for concrete tiles that contain pieces of natural stone, such as granito and marble composite. This unique product is absorbed deep into the pores of the stone, rendering it less absorbent. This prevents the penetration of dirt and (grease) stains, without affecting the original character of the natural stone or sealing the floor off from moisture from below, ensuring the floor can continue to “breathe” as it were. This product does not contain silicon, it is quick drying and can be used indoors and outdoors. One litre is enough for 10-50m² of floor area, depending on the porosity of the floor.