Grout is largely used in the construction process. This kind of material is used to fill the small holes, spaces, joints, cracks and crevices left after placing tiles, marbles etc on the floors and walls of the bathroom. The grout is applied on ceramic tiles, joints and other requisite areas once the process of placing the flooring and wall covering material is over. A thick layer of grout is evenly applied over the entire area with more attention to the joints and crucial areas. The substance hardens within a few hours from the point of application.