This is a special impregnation which repels water, grease and oil. This is used to protect flooring, table tops and working surfaces made of absorbent natural and artificial stone (s.a. marble, Solnhofer stone, sandstone, fine stoneware). This stain repellent is for indoors and outdoors. It prevents the stone from staining or makes the removal of spots much easier, the stone remains capable of breathing. The protective effect already begins after some minutes and is fully effective after 2-3 hours. Normally the colour of the stone remains unchanged. Special substances work against a laminar wetting through liquid drops. Ball-shaped liquid pearls which lie only selectively on top of the stone surface, run off the surface. Also suited for cotto, terracotta surfaces as well as unglazed clay tiles and bricks.