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Polyurethane hot melt, commonly called PUR hot melt, is an adhesive that is heated and dispensed from a cartridge or slug, unlike traditional hot melt which is in stick or pellet form.
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Product Description
Polyurethane hot melt, commonly called PUR hot melt, is an adhesive that is heated and dispensed from a cartridge or slug, unlike traditional hot melt which is in stick or pellet form. PUR is also unique because it solidifies through moisture in the air to form a super-strong bond that will not re-melt. Polyurethane reactive adhesives (PUR adhesives) are one-part formulations that combine the initial speed of a hot melt adhesive with the strength of a structural adhesive.
The bond forms in two stages: when the adhesive cools back down and solidifies like a hot melt it reaches holding strength, then the moisture-curing reaction proceeds over the next 24-48 hours to reach final structural strength. These adhesives are resistant to temperature extremes and flexible to provide vibration and impact resistance.
Because of its strength, durability, and fast set time, PUR is ideal for a wide variety of applications like woodworking, finish carpentry, shoe repair, furniture repair, broken glassware repair, laminate countertops, construction and remodeling, ceramic ceiling tiles, and more.
These adhesives bond well to metals, glass, ceramics, wood and some plastics such as polystyrene and polyacrylic. The combination of no-mix one-part application, rapid handling strength and high final strength makes PUR adhesives excellent candidates to help improve throughput and reduce processing time.
