Core Materials for Composites

Composite core materials serve as the central structural component in composite structures, providing stability, strength, and support while often contributing to the overall lightweight nature of the final product. These cores, typically made of materials like foam, honeycomb structures, or balsa wood, are sandwiched between layers of composite skins to form a composite panel. Their inherent properties—such as high strength-to-weight ratios, excellent insulation, and impact resistance—make them integral in various industries, including marine, aerospace, and construction, where weight reduction and structural integrity are paramount. The choice of core material plays a crucial role in determining the performance and characteristics of the composite structure.

Using pi joints to expand a composite wing’s flight envelope
Aerospace

Using pi joints to expand a composite wing’s flight envelope

DarkAero replaced butt joints in the center wing box assembly to increase the flight test envelope in high-speed gust load conditions for its DarkAero 1 prototype composite aircraft.

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ELFOAM rigid foam products
Industrial CNC Routers

Latest Core Articles

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Epoxies

Tricel Group acquires Matrix Composite Materials

The acquisition expands Bristol, U.K.-based Tricel Group’s advanced composites distribution. 

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Core

Zotefoams appoints Wulfmeyer as first Approved Fabricator for aerospace program

As part of the Global Partner Program, the German aviation specialist will support European customers with expertise in high-precision aircraft foam components.

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Fastening

TheSaKo project considers SME-volume thermoplastic sandwich structure joining, repair methods

Fraunhofer IMWS, SKZ Plastics Center and other cross-functional partners target thermoformable edge shaping, load path-optimized joining zones, weld- and adhesive-optimized joints and repair-friendly concepts.

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Infusion

Sallea extends salt-based templating technology to advanced composites manufacturing

The spin-off company shifts its salt cores platform into industrial applications with the ambition of enabling complex shapes, safe processing and clean dissolution across casting and composite workflows.

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Core

Zotefoams launches Global Partner Program to strengthen quality, service across markets

The foam manufacturer provides a clear framework to customers on how it approves and works with global fabricators and distributors for greater value creation.

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Carbon Fibers

Ampelmann pioneers composite telescopic boom for offshore access systems

Developed with Solico and Netherlands-based consortium, this safety-critical CFRP structure cuts weight by 30% and achieves a new certification standard with Lloyd’s Register.

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Hydraulic & Pneumatic Presses
Watt-Flex® cartridge heaters
Elevate Your Production with Thermwood LSAM
multi-component injection molding process
Watt-Flex® cartridge heaters

Latest Core News And Updates

Core

Armacell PET Foam is recognized as a Factory of the Future

SNAPSHOT: The label highlights the companies’ attention to innovation and forward-looking policies in its eco-friendly PET foam production.

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Core

Gurit composite materials play central role in latest Shearwater racing catamaran design

Zest Boatwork’s current 100% carbon fiber/epoxy design represents the latest chapter in the class’ 70-year evolution from a timber build.

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Recycling

Spur launches Hardex Performance Easy XPP structural foam core

Composite lamination system delivers fast lamination, optimal surface quality, strong bonding and compatibility with PP-based reinforcement systems for sandwich construction projects.

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Core

Mastering the master plug: A brief overview

SNAPSHOT: Achieving a Class A surface finish for large-scale composite parts production starts with a robust structural core and involves meticulous layering, machining and finishing steps.

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Automotive

CompPair, Diab partnership validates healable composite sandwich structures

Tested automotive, aerospace and space applications combining each partner’s material technologies confirm healing value, compatibility and consistent performance.

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Core

Riversedge Composites presents recycled high-density board for marine, composites

Sheets and transom boards exceed 90% recycled content and are available in a range of thicknesses and densities to support the marine and composites markets.

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CONTRAX
Thermoplastic Composite Solutions for Aerospace Structures
Airtech
VIRTEK IRIS AI COMPOSITE INSPECTION
Airtech 3D printing Solutions

Featured Posts

Aerospace

Post Cure: Composite seaglider craft redefine coastal transportation operations

The Viceroy all-electric flagship seaglider being developed by REGENT Craft in Rhode Island operates exclusively over water.  

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Carbon Fibers

Cutting 100 pounds, certification time for the X-59 nose cone

Swift Engineering used HyperX software to remove 100 pounds from 38-foot graphite/epoxy cored nose cone for X-59 supersonic aircraft.

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Space

Revolutionizing space composites: A new era of satellite materials

A new approach for high volumes of small satellite structures uses low-CTE, low-cost CFRP cellular core, robust single-ply skins and modular panel systems to cut lead time, labor and cost for reflectors, solar arrays and more.

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Glass Fibers

Hybrid composite architecture enables rigid wind propulsion solution for maritime decarbonization

GT Wings’ AirWing leverages aerospace engineering principles combined with hybrid glass and carbon fiber composite construction to deliver up to 30% fuel savings through compact, deck-compatible wind propulsion.

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Application

Infused sandwich window frame components help double-decker buses meet weight targets

Prototype GFRP parts were evaluated by Spanish bus manufacturer Carrocerías Ayats as an initial move toward lighter, more efficient, more automated parts and processes.

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Market Outlook

Composites end markets: New space (2025)

Composite materials — with their unmatched strength-to-weight ratio, durability in extreme environments and design versatility — are at the heart of innovations in satellites, propulsion systems and lunar exploration vehicles, propelling the space economy toward a $1.8 trillion future.

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CW Hydrogen Report
CAMX 2026
supplier of essential composite materials
release agents, purging compounds,process aids
release agents, purging compounds, process aids