maritime foam

Marine foam board, a rigid closed-cell PVC foam core, is essential for boat hulls, decks, bulkheads, and yacht components, offering superior strength-to-weight ratios, water resistance (<1.5% absorption), and DNV GL certification. This guide details its properties, applications in marine composites, best practices, and advantages over traditional materials like balsa, with data from manufacturers like UNION COMPOSITES.

This comprehensive guide explains marine foam—a high-performance, closed-cell PVC foam core designed for marine composites. Covering its microstructure (95%+ closed cells, 45-250 kg/m³ density), technical properties (up to 6.2 MPa strength), and applications in boat building, ROVs, and yachts, it offers actionable selection tips and real-world case studies. Learn why marine foam outperforms alternatives for superior water resistance and weight savings in demanding environments.