These foams, based on polyvinyl chloride, produce in sheet form with different thicknesses and densities. Their properties include low weight, thermal insulation, impact resistance, high fatigue life, water resistance, fire resistance and chemical resistance.
Uses of PVC foam in sandwich panels are common. In sandwich panel, PVC foam is placed as a core between two sheets and creates a high strength to weight ratio structure. PVC foam has good adhesion to most adhesives and resins, and has appropriate resistance to solvents such as styrene, which is very suitable for production of sandwich structures with polyester, vinyl ester or epoxy skin. Sandwich panels are applied in aircraft, power plant, marine industry, manufacture of public transportation and sporting goods.