Bondings with technomelt pur are resistant against humidity, heat, cold as well as oil and many solvents. In the past, perfect bound books were notorious for their lack of strength and durability over time. These adhesives can be used in bookbinding jobs ranging from diy to large scale. Invented in the 1930s, pur was first used as a cheaper alternative to costly rubber during world war ii. Book spines that make use of pur are prepared in much the same.
Finally, pur bound books will last even under extreme temperatures. Pur glue is more durable and flexible than eva glue, and once the glue has set, it is almost impossible to tear a page out of a pur bound book. Daubond pur is a line of moisture cured polyurethane adhesives offering exceptional bonding strength. When processing larger quantities, special premelters standing beside the machine are used. Normally, when i pack a picnic or togo lunch or snack for my girls, i use as many reusable containers as possible to avoid having to use disposable plastic baggies. Under certain restrictions, pur adhesives may be processed in quickmelt glue units. This in turn minimises any spine cracking when the finished product is flattened out for reading. As with eva, pur adhesive requires the backbone of the book to be prepared in much the same way, utilizing milling knives, notching heads, and roughing andor equalizing heads to create fiber. Pur book binding pur binding services bookbinders of.
Our liquid pur adhesives are designed for the assembly of complex structures and furniture. The key to this system is the 775 hot melt adhesive spreader including proper shielding and exhaust hoods, placement of drive components and heating connections at opposite ends to insure accurate, consistent glue application. The drying time for pur glue is more like pva glue, so you will have to keep the pages clamped together for a while as it setsup. Polyurethane reactive pur hot melt glue supplier ld davis. Ordinary perfect binding machines use ethylene vinyl acetate eva adhesives, while pur binders. Permanent pur hot melt adhesive glue machinery corporation.
It was originally purchased to glue stained glass into a window, it did that job well and has done everything else equally as well. Thats why its an ideal solution for demanding projects that see frequent use and demand durability. Chemical crosslinking within a few days insures permanent bond. The properties designed within the adhesive draws moisture out of the air. E6000 glue has worked on everything ive used it on so far. In fact, it is nearly impossible to pull a page out of. Pur glue bonds to the book through a chemical reaction. Pur 2707 reactive polyurethane pur hotmelt with high initial bonding strength. When pur is used in bookbinding it makes books more durable, causes less wrinkling in the backbone and gives them excellent lieflat quality. Check out popular hot melt and pur adhesives for bookbinding applications. Fresh avery glue sticks work beautifully, transfering a thin even layer of glue to paper. Compared with eva spine adhesive, pur can reach the same strength with only half usage and provide more beautiful appearance of books. It is classified as a polymer because it has a molecular structure made up of similar units in a repeating chain.
I prefer to use a pva polyvinyl acetate white glue. Nov 07, 20 today pur adhesive is gaining traction in the marketplace as publishers and consumers desire books that will keep the pages bound together more securely over the life time usage of the book. Today pur adhesive is gaining traction in the marketplace as publishers and consumers desire books that will keep the pages bound together more securely over the life time usage of the book. This family of glues comes in a very broad range used in all kinds of industries. Glue options for perfect bound paperback books diy. This technique uses eva ethylene vinyl acetate to glue the pages. Why pur adhesive is better than eva adhesive for book binding. In addition, pur is not susceptible to remelting or coldcracking issues. Page pulls using pur adhesive can be anywhere from 50% to 70% higher than books produced with eva. The gorilla version is brown, and every cover i have used it on becomes discolored as the glue soaks in. Pur glue will last for longer period than any other ordinary hot melt glue or cold emulsion glue. Polyurethane hot melt adhesive, pur hot melt adhesives products pur for bonding shoe materials, pur for textile, pur hot melt adhesive.
Glue is a well told, many faceted linked narratives of victims and victimizers living hand to mouth. Common among professional bookbinders are the acidfree ranges of pva glue, developed specifically for the book binding, conservation and book repair industries and as the name states, offer a ph neutral chemical makeup perfect for bookbinding or restoration projects. Buy pur adhesive pur polyurethane pur adhesive pur laminating systems. Pur allows us to successfully bind materials which would not have previously been attempted using conventional eva ethylene. It also allows the books to be laid flat when opened. Reusable snack bag tutorial what can we do with paper. With their high bond strength, polyurethane hot melts can be an attractive option for many different kinds of adhesive applications. For best results keep them fresh however, the glue sticks do dry out even with the caps on, and then the glue does not spead in an thin even layer. Get comprehensive hot melt book binding and pur adhesive binding systems for soft and hardcover bookbinding from nordson betterbook.
Immediately after application of the adhesive, the glue pot and the gluing system is cleaned with a pur cleaner. We want every barrel we sell to meet our customers needs while minimizing the impact on the environment. The glue on the book s spine can be removed when replacing the book cover or it might need to be replaced if it is an old book that is falling apart. Pur adhesive was approved for otabind style binding also. Glue machinery corporation has a huge selection of adhesives available, such as permanent pur. Pur binding glue pur is an acronym for polyurethane resin or sometimes reactive polyurethane. Please contact us for free sample or receive our professional advice about glue. Professional manufacturing of pur hot melt glue supplier over 55 years. This adhesive provides high heat and water resistance. Polyurethane reactive pur is the most durable book binding glue available. We try to generate as little waste as possible by reducing our consumption, reusing what we can, and recycling products that were able to.
The adhesive reacts to the moisture in the environment for a crosslinked, thermoset adhesive bond. Pur glue is more durable and flexible than eva glue and, once the glue has set, it is almost impossible to tear a page out of a purbound book. Eva hot melt glues still have their place in bookbinding, especially when it comes to binding threadsewn books, as the thicker glue allows for greater penetration into the spine area of the folded. Now anyone can take advantage of the pur technology with a remarkably low investment and use as a bonus one machine for all binding needs. Reusable snack bag tutorial what can we do with paper and glue. Even fans of smythe binding, in which the signatures of the book are. If you want to use this more than once be sure to put vasoline on the tip and threads as the directions say. The main benefits of pur binding include 1 pur has superior flexibility, which prevents the spine from cracking when the book is opened wide or pressed down flat.
The pur hot melt also increases the book s pull and flex strength, making books more durable and allowing them to lie flat without wrinkling the spine. Apr 10, 20 5 cleaning process of eva binders is very simpleeasy as compared to pur binders. Dispensing reactive hotmelt polyurethane pur adhesives. Transitioning to reactive hotmelt polyurethane pur offers companies a way to stay relevant and competitive.
It is far superior to ethylene vinyl acetate eva or any other adhesives used in traditional perfect binding. Picture books whose page pull strength is nearly three times that of perfect binding, and well within the range of pur binding. Currently, different products such as pur hotmelt wood cladding adhesive and edge sealing adhesive are introduced to the market under different application conditions, and special requirements of customization can be realized at the same time. This means readers can bend the pages without breaking apart the spine. A wellmaintained hotmelt pur application system helps produce beautiful, durable products for a variety of consumer and industrial products. Customers who want business card booklets bound often choose this option. Secondly, when applied to standard thickness, pur glue affords considerably more flexibility and pliability than eva, which allows books to demonstrate lie flat characteristics.
Picture books that lie open flat true layflat as flat as smythe sewing or pur binding. Pur polyurethane reactive glue is the most durable binding glue available, offering design flexibility for any number of applications, including brochures, catalogues, instruction manuals and art books. The differences between perfect and pur binding xcaliba. A4 portrait book spine length 297 mm, thickness 20 mm. The fastbind pureva xt offers digital finishing a compact and versatile allinone solution for high quality pur and eva production. It is clear and you require only a little of this glue to acquire tremendous bind. May 27, 2018 this smash book board includes books journals known by many names.
Most often it takes more time to clean pur binders. Pur glue is the most flexible as well as strong adhesive used by most of the book binding experts. This item steinel professional pur glue 50 gram hot melt adhesive applicator tool. Small amounts of glue are melted in a conventional glue pot. About polyurethane polyurethane, or pur, is a synthetic material made up of many organic units connected by urethane links. The 3m scotch weld ez 250150 is a plastic, glass and metal bonding pur with a medium set time and a 4 minute open time allowing users to make fine adjustments after the adhesive has been applied. Apr 29, 2019 the best way to determine if a polyurethane hot melt adhesive is right for your business is to talk with an expert like the glue experts here at glue machinery corporation. If you want to use this more than once be sure to put vasoline on. Mar 21, 2016 we try to generate as little waste as possible by reducing our consumption, reusing what we can, and recycling products that were able to. In fact, since installing its pur binder over three years ago, pg now uses pur adhesion for about 40% of its books both hardcover and softcover. Contact us today to learn more about your adhesive options and find out how our glue diligence program can help identify the best adhesive for your specific needs. Hard and soft cover toolkit, 1 x eva glue cartridge,1 x pur glue cartridge, 2 x cartridge grippers, storage locker for glue cartridges, funnels for glue filling, 2 x gluer caps, tool for gluer cap, glue drop cards, power cord, 50 mm and 100 mm adapters for fume extraction. Hotmelt glue hotmelt glue is suitable for books with a starting spine width of 3mm and paper up to a maximum weight of 170gsm. Glue options for perfect bound paperback books diy bookbinding.
When deciding what kind of adhesive to use for your manufacturing, packaging and labeling needs, you may consider a moisturecuring polyurethane hot melt adhesive pur. The thickness of the application is critical to good results. Polyurethane or pur adhesive glue came along in the late 1980. Polyurethane hot melt adhesive, pur hot melt adhesives nanpao is polyurethane hot melt adhesive manufacturer, pur hot melt adhesives manufacturer. Polyurethane hot melt adhesive, pur hot melt glue manufacturer. For our application, these pur glues are best suited to book binding. It is far superior to ethylene vinyl acetate eva or any other. Apr 16, 2008 the thickness of the application is critical to good results. Buy pur adhesive pur polyurethane pur adhesive oct 24, 2011 pur glue is more durable and flexible than eva glue and, once the glue has set, it is almost impossible to tear a page out of a pur bound book. Pur is a much more expensive material than regular glue. Perfect binding is a process of using glue as an adhesive to stick the interior pages and the cover together. Technomelt pur is the first choice whenever maximum bond strength plays a decisive role for hardwearing furniture as well as for elements for indoor or exterior use. Pam hb220 220 watt adjustable temperature glue gun for ux8012 hot melt adhesive. The disadvantages of using pur is the cost is slightly higher but you use less adhesive per application and the curing time takes longer than.
The glue holds the book binding in place so the pages can stay intact and the book can have a front and back cover. Doublebinding picture books that can be bound at a small fraction of the cost of pur binding. Elmers makes a glue called elmers craft bond, an acidfree, flexibledrying product. Using pur for binding books eliminates any initial fixturing of the pages. We also develop customized polyurethane hot melt adhesive, pur hot melt glue special specifications. Durability is one of the premier reasons pur glue has been such a success. Binding pur books bindery blog by spiel associates, inc. Chemix gurus pur adhesive is an ecofriendly choice to printing industry. May 27, 2018 this smash book board includes booksjournals known by many names.
Jul 18, 2019 chemix gurus pur adhesive is an ecofriendly choice to printing industry. Pur glue is more durable and flexible than eva glue, and once the glue has set, it is almost impossible to tear a page out of a purbound book. Pur is also a reliable glue for a wider range of stocks, it works well even with thick glossy coated paper. The glue packaging style is dictated by the machine it will be used in. Should be filled directly into the glue pot not into the premelter. Fastbind glue contact roller glue penetration to spine with gravity. Excellent operability and easy processing characteristics meet the requirements of various industries, such as woodworking, construction, textile, footwear and automotive industries. I absolutely recommend this glue for repairing everyday, wellloved books. Mar 19, 2019 i prefer to use a pva polyvinyl acetate white glue. Now, even highend catalogs that were previously sewn hold up great with pur adhesives. Steinel professional pur glue 50 gram hot melt adhesive.
The glue used for the perfect bind is either eva or pur. If you do not find what you are looking for, contact us via 18882022468 or the contact form below to discuss your specific needs. Developed for perfect binding in 1989, polyurethane reactive pur adhesive has become the overwhelming preference within the binding industry. Eva is a great economical bind and still provides excellent rigidity to the book. However, there are some disadvantages to the super glue. Jan 24, 2012 secondly, when applied to standard thickness, pur glue affords considerably more flexibility and pliability than eva, which allows books to demonstrate lie flat characteristics. Pur glue guns dispense heated polyurethane pur hot melt from heated adhesive cartridges.
In the printing industry, pur adhesive is most used in the perfect binding and layflat perfect binding. Our pur hot melt glues are suitable for book binding, wood working, packaging, flooring, and other industrial applications utilizing hardtobind materials. Books destined for a long life or heavy use will retain their integrity. Pur book binding pur binding services bookbinders of london. I recommend using a transparent pur glue for books.
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