Hot melt adhesive is a solvent-free, solid state at room temperature, and melted into liquid state after heating.

Simply put, its usage logic is like "solid glue becomes sticky when heated": it melts by heating (usually 100-200℃), applied to the surface of the material that needs to be bonded, and then cures quickly after cooling to form a firm bond.

Its core features are fast drying (several seconds to several minutes of curing), environmentally friendly (no volatiles), and wide application. It can be seen from daily express box edge sealing, mobile phone case bonding, to industrial automotive interiors and clothing fittings.

A summary of one sentence: a solid adhesive that sticks when heated and cools firmly is hot melt adhesive.