The Five Key Characteristics of Hot-Melt Adhesive:

Fast Curing Speed: Suitable for modern high-speed assembly line operations.

Wide Range of Bondable Materials: Suitable for bonding both metallic and non-metallic product components.

Convenient Application: Hot-melt adhesive can be applied using various methods, including spray coating, roller coating, blade coating, etc.

100% Solid Content: Easy to store, energy-saving, environmentally friendly, non-toxic, and does not cause secondary pollution.

Compatible with Resource Recycling: With global resources becoming increasingly scarce, many enterprises now consider resource recycling when products reach end-of-life. Due to its thermoplastic nature (re-melts upon heating), hot-melt adhesive offers advantages during product disassembly and recycling, especially for large products like those in the automotive industry.

Applications and the Role of Hot-Melt Coating Equipment

The application of hot-melt adhesive relies on hot-melt coating equipment.

What is a Hot-Melt Coating Machine Used For?

A hot-melt coating machine is a device that processes solvent-free, water-free, 100% solid, meltable polymers. These polymers are solid at room temperature but melt into a flowable, viscous liquid adhesive when heated to a specific temperature. The machine applies this adhesive onto a substrate. It typically includes a laminating section to bond another substrate to the coated one.

Classification of Hot-Melt Coating Machines Based on Adhesive Type

Based on the hot-melt adhesive used, coating machines are categorized into two main types:

PUR Hot-Melt Adhesive (Moisture-Reactive Type): Requires closed-platen melting machines.

Other Types (EVA, TPU, PES Hot-Melt Adhesives): Utilize screw extrusion melting systems.