Final wall processing — grout.

Final wall processing — grout. If the wall is supposed to be placed tiles, then this stage is not needed, but if the wall is painted or covered with wallpaper, then it is simply necessary. The most thorough grout is made for walls for painting — after all, any unevenness is visible under it. The grouting robot can start when the upper layer of plaster hardens. To do this, use spongy grater moistened with water. First, it passes through the entire surface in circular motions in one and the other. Then, to wash off the remaining circles, vertically on the sides — up and down. The next day the procedure is repeated. The result should be an extremely smooth, even gleaming surface.