What are the differences between PUR glue and hot melt adhesive as an adhesive?
The full name of PUR glue is moisture curing reactive polyurethane hot melt adhesive. It is an adhesive without any solvent/solution. It does not require a drying process like solvent-based adhesives, and it will not cause environmental pollution or poisoning problems. PUR hot melt adhesive Odorless, PUR hot melt adhesive has been used in Europe for many years, and it is a green and environmentally friendly product.
The packaging of PUR hot melt adhesive is sealed with aluminum foil, and the glue supply requires professional equipment that can be sealed to better ensure the quality of the lamination. The hot melt gluer heats and melts the PUR glue in the absence of air.
Hot melt adhesive is a kind of plastic adhesive. Its physical state changes with the change of temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. Hot melt adhesive is solid at room temperature, and it is heated and melted to a certain temperature to become a liquid that can flow and has a certain viscosity. Hot melt adhesives consist of basic resins, tackifiers, viscosity modifiers, and antioxidants.
The main difference between PUR glue and hot melt adhesive is that PUR glue is irreversible during the bonding process, while hot melt adhesive is reversible. In the form of packaging, PUR needs to be sealed and stored, but hot melt adhesive is not used.
