The text block is situated in the new case so that it is centered both vertically and horizontally, yielding the proper amount of square (3mm) at all edges. The book is placed on the bench, making sure the text block doesn't shift in the case. Once this has been accomplished, one board is opened and a piece of scrap paper is placed under the flaps of the super and the cloth hinge of the end sheet. PVA mixture is applied first to the cloth hinge of the end sheet, then to the super.