After an appropriate preparation of the substrate, apply the product as follows: apply a coat of white or any color primer « SABBIAFOND » with a brush or a roller diluted with water to 20 - 25 %. When the substrate is completely dry, apply a coat of « SOFT », undiluted, with the special brush, the glove or the sponge, making circular or cross movements avoiding painting the same position in the same way or in a casual way. « SOFT » can be applied on any type of water - based paints.