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PUR Hot Melt Adhesive

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PUR (Polyurethane adhesive) is a reactive polyurethane hot melt adhesive, also known as moisture-curing reactive polyurethane hot melt adhesive. Its main component is isocyanate-terminated polyurethane prepolymer. After being heated and melted, the PUR adhesive reacts with moisture in the air or moisture on the surface of an adherend to form a partial cross-linked network structure, thereby improving the bonding strength, chemical resistance, heat resistance, hydrolysis resistance and other properties. 


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Key Features:

What is PUR polyurethane adhesive?

Composition: Polyurethane prepolymer (Containing isocyanate groups,-NCO) is used as main raw material, and is cured through crosslinking reaction initiated by moisture (Moisture in air) 


Industry Applications

Sinohesive PUR hot melt adhesives are trusted across diverse industries for their unmatched performance, durability, and versatility:

PUR Adhesive Product

Vision

In recent years, PUR hot melt adhesive has become one of the important varieties in the adhesive industry, and is widely used in the industries of flat lamination, furniture edge banding, profile wrapping, foam lamination, etc.

 

Advantages of PUR polyurethane adhesive

High bonding strength: Excellent adhesion to metal, plastic, wood, glass, textile and other materials

Temperature resistance: Wide operating temperature range (-40°C to 160°C)

Chemical resistance: Oil resistance, solvent resistance, hydrolysis resistance, suitable for harsh environments

Fast initial adhesion: Rapid setting after cooling following heated application, suitable for automated production lines

Environmental protection: Solvent-free, no VOC emission, compliant with RoHS, REACH and other standards

Flexibility: After curing, the adhesive layer is flexible, capable of absorbing stress, and resisting impact and vibration 

FAQ

Q
88
A
Dual bonding mechanism: initial hot melt adhesion + moisture curing for permanent strength Outstanding resistance to heat, water, solvents, and aging Elastic bond lines absorb mechanical stress and prevent failure Compatible with porous and non-porous materialsSolvent-free and low-VOC, compliant with REACH, RoHS, and EPA standards Dual bonding mechanism: initial hot melt adhesion + moisture curing for permanent strength Outstanding resistance to heat, water, solvents, and aging Elastic bond lines absorb mechanical stress and prevent failure Compatible with porous and non-porous materialsSolvent-free and low-VOC, compliant with REACH, RoHS, and EPA standards
Q
123
A

Dual bonding mechanism: initial hot melt adhesion + moisture curing for permanent strength Outstanding resistance to heat, water, solvents, and aging Elastic bond lines absorb mechanical stress and prevent failure Compatible with porous and non-porous materialsSolvent-free and low-VOC, compliant with REACH, RoHS, and EPA standards Dual bonding mechanism: initial hot melt adhesion + moisture curing for permanent strength Outstanding resistance to heat, water, solvents, and aging Elastic bond lines absorb mechanical stress and prevent failure Compatible with porous and non-porous materialsSolvent-free and low-VOC, compliant with REACH, RoHS, and EPA standards

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