After sealing the seams, there is a turn of primer and putty. They are preparing the ceiling for finishing. Impregnate concrete to avoid its makeability, and level the surface of the ceiling. The deeper the primer will be made, the better and more durable the ceiling will turn out. Materials for priming on sale are more than enough. These are the products of the German “Pufas”, and “Tiffing-Grunct LF”, and “Universal Tiffing-Grunct LH”, and so on.
