Regarding the paint itself, the most successful option is water -based, because it has been used very long and have been used and received only positive responses. The surface of the ceiling after painting looks even and homogeneous. It must be applied so that one movement is carried out in a straight line, and the subsequent perpendicular to it, apply the upper layer in the direction of the window. The paint is applied very easily and also has no smell. When choosing a paint, consider that who produces it, for which room is intended, and not too high cost.