What is PUR glue?

Today we are going to talk about the material we use in our producting process, that is PUR glue. Some of you may not very clear towards the PUR glue. Now let' s illustrate it.
The main component of PUR hot melt adhesive is isocyanate polyurethane prepolymer. The adhesion and toughness (elasticity) of PUR are adjustable, and it has excellent adhesion strength, temperature resistance, chemical corrosion resistance and aging resistance. It has the following identified characteristics.
1. PUR hot melt adhesive is solid. When heated to a certain extent, it melts into a liquid and coated on the substrate, and will not dissolve twice after curing.
2. Moisture curing, no drying process, fast and energy saving. The glue layer has a certain degree of flexibility, hardness and a certain toughness.
3. Excellent initial strength, cross-linking curing function, and higher final bonding strength.
4. Single-component type, easy industrial automation, mechanized operation, high production efficiency.
5. The product itself is solid, it is convenient for packaging, transportation and storage.
6. It does not contain any organic solvents, which is 100% solid content, pollution-free, non-toxic, and environmentally friendly.
7. Excellent heat resistance, water resistance, chemical resistance, durability, etc.
8. It is favored by the advantages of simple production process, high added value, high viscosity and strength, and fast speed.
9. Hot melt adhesive has stable performance, high raw material utilization rate, fast production speed and high yield.
10. The equipment covers a small area and has the advantages of small investment.
PUR hot melt adhesive laminating composite machine equipment uses 100% solid hot melt adhesive that does not contain harmful ingredients. After heating it into a liquid state, it is uniformly and regularly laminated on the surface of the working object to achieve the purpose of bonding.
According to different processing objects, different coating forms such as dispensing, spraying and rolling glue and fiber laminating can be selected. Because the equipment is simple to operate, the bonding is reliable and fast, the processing efficiency is high, and the uniform laminating consumes a small amount of glue, which does not pollute the environment and meets the current environmental protection requirements. Therefore, it is used in the footwear, packaging, leather parts, cartons, accessories, building materials, sports equipment, sanitary products, toys, electronics, electrical appliances, leather, furniture and other industries. More and more supporting production equipment is selected.