The Science Behind Hot Melt Adhesives

Hot melt adhesives (HMAs) are thermoplastic materials that bond surfaces by melting at 80–200°C and solidifying upon cooling. Unlike traditional solvent-based glues, HMAs contain no harmful chemicals, emit minimal fumes, and cure in seconds. Their versatility spans industries:

• EVA-based HMAs dominate packaging, sealing millions of food boxes daily with FDA-compliant safety.

• PUR reactive adhesives thrive in automotive manufacturing, surviving extreme temperatures (-40°C to 120°C) for durable seals.

• Water-based PUD adhesives revolutionize baby products, passing rigorous "chew-safe" certifications for diapers and toys.