In work with hot melt adhesives, reactive hot melt adhesives are gaining ever more importance. In the last decade, the outstanding qualities of reactive polyurethane hot melt adhesive, or PUR for short, have especially distinguished themselves, making high strength bonding possible. The unusually high adhesion properties of polyurethane combined with its other characteristics make it possible to bond hitherto “unstickable” products.
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You’ll find more in-depth information on reactive hot melt adhesives in our glossary on our homepage.
Advantages for you when using PUR (reactive polyurethane) hot melt adhesives:
Reactive PUR hot melt adhesives in our range are include .1; .1; ; .1, , , .
Principal areas of application of these hot melt adhesives can be seen for example in the building, automobile and electrical industries.
Advantages for you when using POR (reactive polyolefin) hot melt adhesives:
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The reactive POR hot melt adhesives in our range are .1 and .
Reactive POR hot melt adhesives are mainly used in the automobile industry.
PUR hot melt adhesives, also known as Polyurethane hot melt, are typically used in hot glue guns or bulk dispensing machinery. As a hot melt, it’s quick-dispensing and a popular choice in manufacturing industries across the globe. Since it’s relatively cost-effective, it’s an affordable way to ensure strong bonds between numerous types of materials and a reliable adhesive. PUR hot melt is commonly used in automobile manufacturing, woodworking, doors, windows, floors, and an even broader range of applications. If you’re considering incorporating PUR hot melt adhesives into your manufacturing process, here’s what you need to know about the pros and cons.
One of the most significant benefits of incorporating PUR hot melt adhesives into your manufacturing process is that it’s capable of adhering to numerous substrates and textiles. While traditional hot melt bonds can form an almost waxy bond, PUR hot melt is unique in its cooling process. While cooling, PUR hot melt adhesives undergo a chemical reaction that strengthens the bond to form a highly-binding adhesive. In many cases, it’s considered a stronger bond than traditional hot melt and can replace pricier structural adhesives.
Despite the advantages of using PUR hot melt, it has one primary drawback to consider. As previously mentioned, PUR hot melt undergoes a chemical reaction during the cooling process due to moisture exposure. Unfortunately, this same reaction can also negatively affect PUR hot melt adhesives if they’re stored improperly, and they typically have a shelf life of 12 months when stored properly. Therefore, for companies considering PUR hot melt adhesives, you’ll need to ensure that they’re stored in airtight containers.
At Glue Machinery Corporation, we do the Glue Diligence® so that you don’t have to. If you’re looking into different types of hot melt adhesives for your manufacturing industry and you aren’t sure which glue would work best, we can help. With our Glue Diligence®, we can find the right adhesive, machinery, and equipment for your specific application and production needs so that your company can get the most bang for your buck.
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