In recent years, continuous sandwich panels with rigid polyurethane (PU) foam cores have become a widely used material in both construction and industrial applications. These panels consist of two metal facings and a rigid PU foam core, produced through a continuous manufacturing process that ensures consistent thickness, strong adhesion, and reliable structural performance.
Rigid PU foam is known for its excellent thermal insulation thanks to its closed-cell structure, while its low density keeps the panels lightweight without sacrificing strength. These features make them ideal for cold storage facilities, refrigerated warehouses, and energy-efficient buildings. The continuous production process further enhances the bond between the foam and the facings, improving impact resistance and long-term durability.
Design flexibility is another key advantage. Continuous sandwich panels can be customized in terms of thickness, facing materials, and surface finishes to meet specific functional and aesthetic requirements. The panels are also resistant to moisture, corrosion, and pests, reducing maintenance costs and extending their service life.
With their lightweight structure, excellent insulation, and easy installation, continuous sandwich panels with rigid PU foam are widely used in industrial facilities, logistics warehouses, cold chain systems, and public buildings. As PU foam technology and panel manufacturing techniques continue to improve, these panels offer even better performance and sustainability, providing a reliable material solution for modern construction and industrial projects.
We have 3232 is a kind of blend polyol used for the continuous line, color steel sandwich panel general flame retardant rigid PU foam. It is widely used for the production of cold storage sandwich panel, building roof panel, factory out wall panel, door panel and so on. It used together with isocyanate to make rigid PU foam of the color steel sandwich panel through PU foaming machine and laminating plant.
The foam produced has the characteristics as following
- Low ODP.
- It has a good bonding effect with the steel.
-The low thermal conductivity, low water absorption and good dimensional stability.
-The long service life.
Any needed please contact us