Industry News

Selecting the right core material is critical for advanced marine composite manufacturing. This article explores the essential parameters engineers verify when choosing a DNV certified marine structural foam, highlighting how rigorous testing, chemical compatibility, and precise density control reduce risks and ensure predictable lamination performance in modern shipbuilding.

Selecting the right PVC Foam Core for vacuum infusion is critical for achieving lightweight, high-strength, and cost-effective composite structures. Success depends on five decisive factors: optimized density (45–250 kg/m³), ultra-high closed-cell content (>95%), minimal resin absorption, exceptional CNC machining tolerance (±0.2mm), and trusted certifications such as DNV-GL. When these elements are properly optimized, PVC Foam Core delivers superior mechanical performance, reduced material costs, and repeatable quality across marine, wind energy, automotive, and drone applications.

Perforated PVC Foam Core sheets are engineered to optimize resin distribution and mechanical interlocking in sandwich panel composites. By creating controlled vertical channels through the closed-cell structure, they ensure superior wet-out, minimize voids, accelerate infusion cycles, and improve overall bond strength. This article examines the science behind different perforation patterns, important performance trade-offs, practical implementation guidance, and proven real-world performance across marine, wind energy, automotive, and drone applications.

Maximize your vacuum infusion efficiency with grooved and perforated PVC Foam Core. This technical guide explores the engineering behind CNC-machined flow channels, detailing how they accelerate resin distribution, improve interlaminar shear strength, and reduce cycle times. Learn how to navigate the crucial trade-offs between core density and resin uptake when specifying materials for high-performance marine and wind energy composites.

PVC Foam Core water absorption significantly impacts component weight stability, skin-to-core bond durability, and long-term lifecycle cost in marine, wind energy, automotive, and industrial composite structures. This technical article explains the science behind ultra-low moisture uptake, focusing on ultra-high closed-cell content (>95%), microcellular structure, density effects, and precision manufacturing. It details standardized testing per ASTM D2842, recommended performance limits (<1.5%), and practical guidance for engineers on material selection and specification to ensure reliability in demanding environments.

Choosing the right core material is critical for advanced composite manufacturing. This technical guide explores the essential specifications of closed cell PVC foam core—such as density, microcellular structure, resin uptake, and industry certifications—and explains how these factors directly impact the weight, cost, and structural integrity of marine, wind energy, and aerospace applications.

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

This blog explores the applications of structural foam core, a high-performance closed-cell material used in marine hulls, wind turbine blades, automotive panels, and more. It covers the science behind its strength (up to 6.2 MPa), practical implementation steps, and real-world benefits like weight reduction and durability, drawing on industry standards and expert insights from UNION COMPOSITES.