High Density PVC Foam Core for Composite Panels

High-density PVC foam core offers excellent compressive strength, shear strength, and stiffness-to-weight ratio, making it an ideal structural core material for composite sandwich panels. Compared with solid laminates, it significantly reduces weight while maintaining structural integrity. Its closed-cell structure also provides excellent resistance to water absorption, corrosion, and fatigue, ensuring long-term performance in demanding environments.

The appropriate density depends on the structural requirements of the final component. Lower-density grades are typically used where lightweight performance is the priority, while high-density grades are preferred for load-bearing areas requiring greater compressive and shear strength. Applications such as marine decks, wind turbine blade root sections, transportation floors, and industrial structural panels often utilize higher-density PVC foam cores for enhanced mechanical performance.

Yes. High-density PVC foam core is widely used in vacuum infusion (VARTM), RTM, hand lay-up, prepreg, and compression molding processes. Many grades are available with perforations, grooves, or scrim backing to facilitate resin flow and improve manufacturing efficiency. This makes PVC foam core a versatile choice for a wide range of composite manufacturing technologies.

High-density PVC foam core is widely used in marine, wind energy, transportation, construction, and industrial composite applications. Typical uses include boat hulls and decks, wind turbine blades, truck and RV body panels, railway interiors, swimming pools, radomes, and industrial sandwich structures. Its combination of lightweight properties and structural strength makes it suitable for demanding engineering applications.

Yes. PVC foam core features a closed-cell structure that provides very low water absorption and excellent resistance to moisture, chemicals, and corrosion. It maintains stable mechanical properties even in humid, marine, or outdoor environments. This durability helps extend the service life of composite structures while reducing maintenance requirements over time.