PUR Adhesive for Bindery

In the printing industry, PUR adhesive is most used in the perfect binding and lay-flat perfect binding processes.  We recommend it for use in binding of materials with heavy ink coverage and/or bleeds, heavy use (e.g. reference materials, catalogues, cook books, art books, etc.), wrong grain paper stocks, heavy weight papers and/or specialty papers, such as synthetics, plastics, art papers, and/or a variety of different substrates, thicknesses and sizes.

PUR glue reacts with moisture to cross-link molecules for improved performance characteristics.

PUR adhesive provides a binding at the spine that is significantly stronger, more flexible and more durable than traditional hot melt.

Click on the bars below to see more information on PUR adhesive.

Why Specify Polyurethane Reactive (PUR): Features, Advantages and Benefits

Available only on our 21-pocket perfect binder.

PUR adhesive reacts with moisture to cross-link molecules for improved performance characteristics. PUR is recommended for use in binding of materials with heavy ink coverage and/or bleeds, heavy use (for example, reference materials, catalogues, cook books, art books, etc.), wrong grain paper stocks, heavyweight papers and/or specialty papers such as synthetics, plastics, art papers, etc.

PUR provides a binding at the spine that is even stronger and more durable than traditional hot melt.

  • Glue sets in seconds, is structurally rigid very quickly, and continues to cure over time.
  • Page pulls and flexes are far superior to hot melt glues. Overall book flexibility is enhanced as adhesive is only half as thick as hot melt.
  • Problem of ink migration at the spine is eliminated as solvents and volatiles in the ink cannot break down PUR glue.
  • PUR is applied at cooler temperatures than hot melt and therefore cross grain book stocks are less likely to go ‘wavy’ at spine.
  • Crack resistant, even with extreme cold weather conditions. Pages won’t fall out. Glue is heat resistant. PUR won’t ‘melt’ under extreme heat conditions, unlike conventional hot melt glue.
  • PUR works well with coated and uncoated papers.
pur adhesive
Short Sheets, Die Cuts, Fold-Outs, and Multiple Substrates Perfect Bound with PUR Adhesive
pur adhesive, stepped perfect binding sample
Complex Stepped Perfect Binding Sample