Can PUR glue be suitable for the bonding of MDF?

Can PUR glue be suitable for the bonding of MDF?

No, PUR (Polyurethane Reactive), the full name is moisture curing reactive polyurethane hot melt adhesive. The mechanism of PUR hot melt adhesive is that the polyurethane prepolymer reacts with moisture in the air, solidifies and crosslinks to form a stable chemical structure. Compared with EVA hot-melt adhesive, PUR hot-melt adhesive has a lower melting temperature (110-130°C), strong adhesiveness, high cold resistance, high heat resistance, and long storage time.

1. It is a pure solid non-toxic substance. It does not need to add any solvents when using it. Our company’s composite processing will be carried out in a dust-free space, so there is no environmental pollution and residual harmful substances in the product. Phenomenon.

2. The production efficiency is high, no drying process is required during use, and it can be rapidly cooled and solidified at room temperature, and the product quality is easy to control.

3. It has good weather resistance. Since it has irreversible characteristics after bridging, it will not be subject to creep and brittleness due to changes in ambient temperature.

4. The melting point is low, generally between 110-130 ℃, glue should be applied, and it will not have any effect on the color and feel of heat-sensitive materials.

5. The bridging reaction can be carried out when it meets the moisture in the air, and the operation process is simple.

6. It has extremely strong permeability and affinity, and its bonding strength is 40%-60% higher than other adhesives under the same conditions, which greatly reduces the amount of adhesive used.

7. Excellent resistance to water vapor, chemicals and solvents.

8. Soft texture It is widely used in the lamination of high-grade clothing fabrics and functional fabrics, medical lamination, especially suitable for the lamination of thin (TPU, PTFE, PE, PVC, etc.) and cloth.

PUR hot melt adhesives are widely used, and are generally used for bonding and bonding of various products. The more common one is a PUR hot melt adhesive. The difference between this PUR hot melt adhesive and ordinary hot melt adhesives is Where is it? Ordinary hot melt adhesive is a relatively wide type of glue. PUR hot melt adhesive is one of the types of glue. The general hot melt adhesive is heated and coated, and can continue to be heated after lamination. It is a kind of State reversible glue. And it also has an attractive feature, that is, books bound with PUR glue have good unfolding properties, and have become the new favorite of hot-melt adhesives for binding. The abbreviation of glue, PUR hot melt adhesive is different because it contains chemical functional groups, so when it melts, it will react with the moisture in the air to form an irreversible substance, that is, it cannot be melted again. Sometimes also called thermosetting hot melt adhesive.