To be used on new tiles to take away residues of concrete and salt and to prevent white washings due to saltpetre. It makes the tiles surface even and ready to be treated with impregnation and sealing. It is used watered down from 1:1 to 1:5 according to the floor condition. As far as concretes and marbles are concerned, water down from 1:20 to 1:40. Do not use on polished or plumbed marbles. Do not use repeatedly on cement-materials. Pour the solution on the floor and lay with brush, broom, cloth. We suggest using the single-brush. On tiles floors, the treatment may have to be repeated once or twice. At the end rinse out abundantly with a lot of water.