PVC Foam Core

Selecting the right PVC foam core manufacturer is critical for composite projects. This guide helps engineers evaluate suppliers based on technical specifications and quality standards.
Leading manufacturers like Union Composites produce closed cell rigid PVC foam with densities 45-250 kg/m³, meeting DNV GL certification for marine and industrial applications. Key criteria include: CNC precision ±0.2mm, closed cell structure >95%, water absorption <1.5%, and density variation <3%.
Beyond unit price, consider total ownership cost including waste rates, resin compatibility, and technical support. Premium PVC foam suppliers deliver 20-30% savings through material consistency and reduced scrap rates.
Union Composites offers ISO 9001:2015 certified foamed PVC sandwich panels with superior uniformity and proven marine structural foam core performance for yacht construction, wind turbines, and transportation applications.

Union Composites stands out as a leading core foam manufacturer and PVC foam supplier, delivering high-performance StruCell® closed-cell PVC foam core solutions for marine structural foam core needs. Our rigid PVC foam boards offer superior strength-to-weight ratios, ultra-low resin absorption, excellent water resistance, and thermal insulation, making them perfect for boat hulls, decks, wind turbine blades, automotive panels, and drone frames. DNV GL-certified with densities from 45-250 kg/m³, ±0.2mm tolerance, and custom surface treatments for foamed PVC sandwich panels, we provide 20-30% cost savings over competitors. Enjoy no MOQ, free samples, fast delivery (5-7 days for small orders), and 24/7 engineering support for tailored, ISO 9001-compliant innovations. Contact us to elevate your projects.

Marine plywood's susceptibility to water absorption, rot, and weight penalties has driven the shift to structural PVC foam core. This engineered alternative offers permanent waterproofing via its closed-cell structure, eliminating decay. Its superior strength-to-weight ratio significantly reduces vessel displacement, enhancing performance and fuel efficiency. While the initial material cost is higher, PVC foam provides a lower total cost of ownership through reduced labor, lower resin consumption, and zero maintenance for rot, making it the definitive choice for modern, durable, and high-performance marine applications.

PVC foam core has become the premier structural material for composite sandwich panels in wind turbine blades, marine vessels, transportation, construction, and sports equipment. This guide analyzes PVC foam's advantages over balsa wood and presents selection criteria based on material requirements and environmental conditions. Engineers can use these frameworks to optimize core material selection for applications demanding superior water resistance, dimensional stability, and consistent mechanical properties.

Unsure if PVC foam is thermoplastic or thermosetting? This definitive guide explains the science behind PVC, PVC foam, and cross-linked PVC foam, clarifying their material properties and applications.

PVC foam core is a rigid, closed-cell structural foam made from polyvinyl chloride (PVC) and used as the lightweight core in composite sandwich panels. Thanks to its high closed-cell content, low resin uptake, and excellent strength-to-weight ratio, it’s a go-to core for marine, wind energy, automotive/RV, aviation/UAV, refrigerated transport, and sports equipment. UNION COMPOSITES manufactures DNV-certified StruCell® rigid PVC foam cores in densities from 45–250 kg/m³, with tight thickness tolerances (±0.2 mm), low water absorption (<1.5%), and CNC-ready surfaces engineered to save weight and cost in production.

Confused between standard PVC foam board and structural PVC foam core? This definitive guide clarifies the critical difference between low-cost, calcium carbonate-filled boards and high-performance, cross-linked structural PVC foam cores. Learn the critical differences in composition, properties, machining, and applications to choose the right material for marine, automotive, industrial projects, and composite applications.

UNION COMPOSITES' DNV GL-certified StruCell® structural PVC foam provides superior buoyancy solutions for demanding marine applications like ROVs, AUVs, and offshore platforms. This closed-cell (>95%) rigid PVC foam offers exceptional strength-to-weight ratios (45-250kg/m³ densities) with 6.2MPa compressive strength for deep-sea pressure resistance. CNC-machinable for custom geometries, it features <1.5% water absorption, corrosion resistance, and thermal stability (-50°C to +80°C). Ideal for submersible housings, ship hulls, and buoyancy modules, our marine-grade PVC foam outperforms traditional materials with optimized weight reduction and long-term durability in harsh saltwater environments.

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.