PVC Foam Board

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.

When you design load-bearing composite panels, you need a high-strength, cross-linked PVC foam core. This closed-cell material effortlessly handles heavy shear, bending, and compression forces. Conversely, you use standard PVC foam board—an un-cross-linked, heavily filled plastic sheet—strictly for

A sandwich panel that misses its weight target is rarely “mysterious.” More often, the culprit is simple: the core density was chosen like a catalog checkbox instead of as a design variable tied to shear, peel, fatigue, water resistance, and resin uptake.A pvc foam core density chart is the fastest

A 6 mm core that takes an extra 150 grams of resin per square meter is not a rounding error - it is a weight and cost problem that compounds across every panel you laminate. For composite sandwich construction, core selection shows up later as vacuum stability, edge finishing time, bond-line consist

A sandwich panel rarely fails because the skins are “too weak.” It fails because the core choice was treated like a placeholder - and then the laminate got heavier, wetter, or less repeatable than the model promised. If you build composite structures for marine, wind, transportation, UAV, or industr

UNION's rigid structural PVC foam boards revolutionize campervan and motorhome construction, offering superior performance versus traditional plywood and aluminum honeycomb. As a DNV GL-certified core material, our closed-cell PVC foam provides 50% weight reduction, 100% waterproof protection, and CNC-ready machinability for precision RV interiors. Ideal for walls, ceilings, flooring, and cabinetry, these marine-grade panels deliver unmatched thermal insulation (0.035–0.055 W/m·K), UV resistance, and fire-retardant properties (UL94 V-0). Trusted by Australian RV builders for extreme climate durability. Request free samples for your conversion project.

UNION COMPOSITES' V-Groove Scrim Board PVC rigid foam revolutionizes catamaran tunnel design with its patented wave-damping structure. This marine-grade rigid foam features precision-cut V-grooves and fiberglass scrim reinforcement, reducing hull drag by up to 15% while maintaining DNV GL-certified buoyancy stability. Engineered for high-speed catamarans, the closed-cell PVC core (60-130kg/m³ densities) combines <1.5% water absorption with exceptional compression resistance (up to 3.0MPa). Ideal for tunnel reinforcement and hydrodynamic optimization, our CNC-machined panels are trusted by naval architects for competitive sailing vessels and passenger ferries. Request technical datasheets for your catamaran project.

PVC foam (polyvinyl chloride foam) is a lightweight, closed-cell structural material revolutionizing marine, aerospace, and transportation industries. UNION COMPOSITES' DNV GL-certified PVC rigid foam boards offer exceptional strength-to-weight ratios (45-250kg/m³ densities) with <1.5% water absorption and 6.2MPa compressive strength. Ideal for wind turbine blades, boat hulls, and vehicle panels, this versatile material provides superior thermal insulation (0.035–0.055 W/m·K), UV resistance, and CNC machinability. Compared to traditional materials like plywood or aluminum honeycomb, PVC foam delivers 30% weight reduction with enhanced durability. Discover why engineers worldwide choose PVC foam for high-performance composite applications – request free samples today.