What is a hot melt adhesive? Types and applications

Hot melt adhesives are solvent- and water-free thermoplastics applied molten. Differences between EVA, PO and PUR hot melts, their benefits and uses by industry.

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A hot melt adhesive is solid at room temperature, becomes liquid when heated and is applied molten. It builds strength very quickly on cooling and is 100 % solids — no solvent, no water — which makes it essential for fast, automated lines.

Types

TypeBaseHighlightTypical use
EVAEthylene vinyl acetateEconomical, versatileEdge banding, packaging, bookbinding
PO / APAOPolyolefinHeat and ageing resistanceEdge banding, filters, assembly
PUR reactivePolyurethaneMoisture-curing, heat and water resistantProfile wrapping, zero-joint edges, lamination
POR reactiveSilane-modified polyolefinIsocyanate-free reactiveEdge banding, assembly
PSARubber/resinPermanent tackLabels, tapes

Benefits

High line speeds, no drying, gap filling, broad adhesion and heat reactivation.

See hot melt adhesives and reactive hot melts, or contact us.

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