Polyurethane (PUR) Hot Melt vs Traditional Hot Melt Adhesives - Strength Test | Hotmelt.com

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When deciding what kind of adhesive to use for your manufacturing, packaging, and labeling needs, you may consider a moisture-curing polyurethane hot melt adhesive (PUR). With their high bond strength, polyurethane hot melt can be an attractive option for many different kinds of adhesive applications. However, polyurethane hot melts are not without their disadvantages as well. Let's take a closer look at the pros and cons of using polyurethane hot melts for your particular adhesive needs.
Polyurethane (PUR) hot melts are used in tons of manufacturing and product assembly applications across the world and gaining steam every year. you'll find PUR adhesives in applications that require strong bonds to wood, plastics, fabrics, leather and many other materials. PUR hot melts are becoming increasingly popular because of how versatile they are. PUR can be applied as a bead or sprayed for covering large surface areas. These adhesives also come in a wide range of open times and viscosities allowing them to cater to specific application needs.

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The darker colored shim had a knot where it broke. It was extremely brittle. It wasn't a good demonstration.