PVC foam board (Sunboard, Celuka board) and structural PVC foam core share the same polymer and closed-cell look, but they are made by different processes and are not interchangeable. This guide compares extruded advertising-grade board with moulded, cross-linked structural core on process, density, strength, heat resistance, water absorption and resin compatibility, and explains which applications each one suits. It also lists the StruCell structural PVC foam core grades from 48 to 300 kg/m3 with sheet sizes, thicknesses and surface options.
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