More Facts on PUR Glue
1) Perfect Bound Books that are created for Children –  Young children have a tendency to handle books very roughly.  Fortunately, the flexibility of PUR adhesive prevents the spine from  cracking when the book is opened wide or pressed down flat. Also,  despite the tugging and twisting of small hands, the cover and pages  remain securely fastened at the spine.
2) Perfect Bound Books that will see Frequent Use –  Because it is strong yet pliable, books bound with PUR adhesive are able  to withstand the rigors of repeated opening and closing. Also, it is  nearly impossible to pull a page out of a book bound with PUR adhesive.
3) Perfect Bound Books that will be Subject to Extreme Temperatures  – Whether your books will be used in temperatures as low as -40º F or  as high as 200º F, the PUR binding will remain strong, flexible and  intact. No more fractured spines from the bitter cold or pages coming  loose in the intense heat.
4) Perfect Bound Books that have Relatively Few Pages –  The recommended spine width for a traditional perfect bound book is  around 1/4”, but with PUR binding the spine can be as narrow as 1/8”.  This is because PUR adhesive does not need as much surface area to  firmly secure the book’s pages.
5) Perfect Bound Books that have Glossy Pages – Unlike  traditional perfect binding adhesives, PUR adheres extremely well to  pages that have a smooth, glossy finish. This means the pages of your  bound document can be finished with a gloss coating – such as a varnish,  aqueous or UV coating. In addition, you can also use pages that have a  protective film applied – such as a laminate or mylar.