High-Density PVC Foam Core (Polyvinyl Chloride Foam Board) for Structural Sandwich Panels in Construction Engineering

High-Density PVC Foam Core offers an excellent strength-to-weight ratio, good compressive and shear properties, water and corrosion resistance, and outstanding dimensional stability. It also provides effective thermal and acoustic insulation, is easy to process and bond, and is suitable for applications such as building facades, roofs, and partitions in structural sandwich panels.

Yes, modern high-density PVC foam boards are typically treated for flame retardancy (e.g., achieving Class B1 fire rating) and comply with relevant construction standards (such as EU CE certification or ASTM standards in the U.S.). Environmentally friendly options use CFC/HCFC-free foaming processes, and some are recyclable. However, specific local environmental regulations should be verified.

Compared to polyurethane foam, PVC foam generally exhibits higher mechanical strength and better chemical resistance. In contrast to balsa wood, it is moisture-proof, rot-resistant, and offers more consistent performance. However, it may be more expensive than some traditional core materials, so selection should be based on project requirements and cost considerations.

Epoxy or polyurethane-based structural adhesives are recommended for bonding, ensuring surfaces are clean and dry. Standard woodworking tools can be used for cutting and sanding, but heat buildup should be controlled to avoid melting. Edge protection and load distribution should also be considered during design.

The thickness ranges from 20-150mm, and the density is available from 0.45-0.90g/cm3 to meet different structural requirements.