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Hot Melt Adhesive (PUR & EVA): The Science Behind Strong, Fast Woodworking Bonds

2025-11-13

Hot melt adhesive, or hot glue, is a thermoplastic polymer used extensively in woodworking, especially in edge banding and assembly.


There are two primary types:


EVA (Ethylene-Vinyl Acetate), a common, general-purpose adhesive supplied in granules or cartridges; and PUR (Polyurethane Reactive), a more advanced, moisture-curing adhesive.


PUR adhesives are renowned for their superior bond strength, heat and chemical resistance, and flexibility. 


Once applied in a molten state and cured, PUR forms an incredibly strong, waterproof bond that is often stronger than the wood itself, making it the preferred choice for high-quality edge banding and structural applications.