Perfect Binding: Pacific Bindery has three perfect binders: 1.The 21-pocket Muller Martini Corona C12 which is capable of perfect binding with either Polyurethane Reactive (PUR) or EVA hot melt glues. It is also capable of binding Lay-Flat using PUR glue. 2.The 18-pocket Starbinder is capable of large, medium and shorter runs and is a conventional EVA hot melt perfect binder. 3.The Horizon perfect binder is also a conventional EVA hot melt perfect binder for short run work. Characteristics of our perfect binding are printable spines, strength in the bind and a clean, elegant look.