This single-component polyurethane (PU) liquid adhesive is designed specifically for laminating galvanized steel sheets with paper honeycomb cores in fire-rated door manufacturing.

It cures by reacting with moisture in the air and on the substrate surface, creating a permanent bond that will not dissolve or melt under high temperatures.

Key Advantages

• Ready to Use: 1-component formula eliminates the need for mixing or weighing—no waste and no pot-life worries.
  
• Fire-Safe & Non-Melting: Once cured, the thermoset bond line does not soften in extreme heat, helping doors pass fire ratings.
  
• Gap-Filling Power: Expands slightly during curing to fill voids between uneven steel sheets and thin honeycomb cell edges.
  
• Strong Metal Adhesion: Bonds firmly to galvanized plates, cold-rolled steel, and aluminum without special primers.
  
  

Suitable Materials

Quality & Certifications

• ISO 9001 Quality Management Certified
  
• ISO 14001 Environmental Management Certified
  
• Fire Resistance Certified for adhesive safety in building doors
  
• Recognized with the China National New Products Certificate