Some applications call for the look of perfect binding with the ability to lay flat when opened. Thanks to the advantages of PUR adhesive, LayFlat adhesive binding at Finish Line Binderies comes close to the completely “lay flat” capabilities of mechanical binding. In this process, the cover is married to a PUR-bound book block not at the spine, but along the front and back covers using a strong hot-melt adhesive. This allows the book block to “float” over the spine and lay flat when opened.