The invention relates to a partition or a method for producing a partition for a multilayer pressed packet, wherein the partition can be placed as a pressing sheet in the composite of a multilayer pressed packet to be produced, especially between two multilayers. The glass-ceramic article contains keatite mixed crystals or high quartz mixed crystals as well as the keatite mixed crystals. The applicator includes a frame, a carriage mounted to the frame for longitudinal movement, a closure supply and an anvil mounted to the carriage for longitudinal movement with the carriage. In addition, the compositions, when used according to the methods of the present invention, do not exhibit the severe side effects of many prior art compositions proposed for treatment of these ailments.