MasterBond Tiles Putty is a dispersion and cement-based putty, directly on tiles, for stopping cracks and holes and touching up, smoothing and leveling facades, wall and floor surfaces. This putty for Tiles and Wall Surfaces is ideally suited for touching up, smoothing, leveling, and covering all mineral substrates, such as lime and cement plasterwork, gypsum finish, concrete, aerated concrete, brick and firmly bonding substrates such as synthetic resin plaster, and old coats of paint.