Placeholder canvas

Drawbacks of PUR Hotmelts

Drawbacks of PUR Hotmelts

Share This Post

The Drawbacks of PUR Hotmelts

PUR hotmelts are polyurethane hotmelt adhesives, that are used for structural bonding of panels and a wide variety of other applications. You can learn more about this type of adhesive in our blog outlining how PUR adhesives work, but PUR adhesives have become quite popular because of how versatile they are. They provide a quick bond to wood, plastics, fabrics, leather and many other substrates.

However, all this does come with downsides. For one, because of how quickly they bond, you don’t have much time to apply the adhesive and bond the substrates together. This means there is little time for adjustments, you must get it right the first time. PUR hotmelts react with the moisture in the air, so they cannot be exposed to air before use. These adhesives can create a visible bond line which is not aesthetically pleasing, and the bond line can get discolored, as these adhesives are susceptible to UV light.

There also are high costs associated with equipment and maintenance, and the equipment is quite specialized and difficult to keep clean. Maintenance on the production line must be adhered to. On the whole, PURs are more hazardous and difficult to work with than other adhesives.

So what adhesives should you use instead? There are many options, such as MS polymers, high-heat hotmelts, and spray adhesives. Contact us today, and let us know your application and the substrates you’re bonding, and we would be glad to provide our recommendations!

Have Questions and want to know more?

We would love to hear from you!

More To Explore

Uncategorized

Contact Adhesive: Navigating Safety Protocols

Contact Adhesive: Navigating Safety Protocols Key Takeaways Understand Risks: Be aware of VOC emissions, flammability, and skin/eye irritations. Safe Workspace: Ensure adequate ventilation, proper adhesive storage, and clear labeling. Use PPE: Wear respirators, protective gloves, and safety goggles to minimize exposure. Follow Best Practices: Adhere to manufacturer’s instructions, apply adhesively mindfully, and clean spills immediately.

Uncategorized

Contact Adhesive: The Go-To Solution for Dynamic and Flexible Bonding

Contact Adhesive: The Go-To Solution for Dynamic and Flexible Bonding What Are the Key Benefits of Using Contact Adhesive? Superior Flexibility: Ideal for materials that experience movement or temperature changes. Diverse Material Compatibility: Effective with a wide range of non-porous materials. Resilient in Challenging Environments: Maintains strong bonds under stress, temperature variations, and moisture. Ease

Scroll to Top