PUR hot-melt adhesive is a moisture-reactive polyurethane hot-melt adhesive, which solidifies and bonds by reacting with moisture in the air. Therefore, the biggest feature of the PUR hot melt adhesive machine is that the PUR hot melt adhesive must be isolated from the air, which requires a very good seal.
Ordinary hot melt adhesives become viscous by being heated to a molten state. After cooling, they solidify and bond. When heated again, they are still viscous. Once the PUR hot melt adhesive machine cools and solidifies, the melting point temperature is particularly high when heated again. No longer sticky.
Ordinary hot melt glue machine is to put the glue into the melting tank, the whole is melted, and the unused glue will be used again after cooling down; and one of the core components of the PUR hot melt glue machine is the hot melt glue heating plate, which is When heating, it is from top to bottom, only the layer of glue in contact with the heating plate is melted, and as much as it is used.