Acrylic pressure sensitive adhesive is a great range, PUR is one of them, the large minority of acrylic pressure sensitive adhesive is heating operation, the joint can be heated again after use, is reversible, and PUR is moisture response type acrylic pressure sensitive adhesive, heating operation, the meeting after laminating and moisture in the air, after the reaction is irreversible (i.e., heat will not melt). So PUR is more resistant to low and high temperatures.

Acrylic pressure sensitive adhesive

Acrylic pressure sensitive adhesive - moisture curing reaction type polyurethane acrylic pressure sensitive adhesive, acrylic pressure sensitive adhesive spraying technical support.

PUR(Polyurethane Reactive), known in Chinese as moisture curing reaction type Polyurethane acrylic pressure sensitive adhesive. The secondary component is the isocyanate-terminated polyurethane prepolymer. The adhesion and toughness (elasticity) of PUR can be adjusted, and has excellent bonding strength, temperature resistance, chemical corrosion resistance and aging resistance. In recent years, it has become one of the important types of adhesives industry. Now it is widely used in packaging, wood processing, automobile, textile, electromechanical, aerospace and other national economic categories.

PUR adhesive is the molecular structure contains extreme and chemical activity of ammonia ester group (-NHCOO-) or isocyanate group (-NCO), and contains vivid hydrogen data, such as wood, leather, fabric, paper, ceramic and other porous data and plastic, metal, glass, rubber and other appearance bright data have excellent adhesive force.

Compared with acrylic pressure sensitive adhesive and water-based solvent-based adhesive,PUR has the following advantages:

Solvent-free, one liquid type. Unlike solvent-based adhesives that need to have a dry process, there is no environmental purification and poisoning due to the existence of the solvent, to meet the environmental requirements. The bonding process is simple and can be applied by roller coating or spraying.

2. Good operability. In a short time can be fixed two viscous body, so quickly will be disassembled parts into the next processing procedure, improve efficiency.

Good resistance to heat, cold, water vapor, chemicals and solvents. Compared with the original acrylic pressure-sensitive adhesives, the functions and bonding strength of the reactive pressure-sensitive adhesives are improved greatly due to the crosslinking structure.