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.