Slightly alkaline, highly concentrated cleaning agent. Free of phosphates and lyes, biodegradable, foodsafe (certified by an external German testing institute) Field of Application: For the thorough removal of building dirt. Removes layers of stone polish and wax, slight concrete films, oil and grease, soot and tar stains, residues of synthetic paints as well as plaster on all natural and artificial stones such as marble, travertine, terrazzo, granite, brick and cotto slabs, tiles, fair-faced concrete and fine stoneware