Compression Molding of Composites

Compression molding is a widely employed technique in composite manufacturing, involving the use of heat and pressure to shape composite materials. In this process, a pre-measured amount of composite material, often in the form of sheets or pellets, is placed into a mold cavity. The mold is then closed and subjected to high pressure and temperature, allowing the material to conform to the shape of the mold. As the material compresses and solidifies, it forms the desired product. Compression molding is favored for its ability to produce complex shapes with high fiber volume fractions, ensuring strong and consistent composite parts.

Snap-Cure Epoxy Prepreg Systems: Thermoset Performance at Thermoplastic Speeds
Troubleshooter

Snap-Cure Epoxy Prepreg Systems: Thermoset Performance at Thermoplastic Speeds

The autoclave has long defined thermoset composites processing — snap-cure epoxy prepreg systems are built around the premise that it doesn't have to.

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Hydraulic & Pneumatic Presses
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Latest Compression Molding Articles

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CAMX

Precision Tooling Expertise Supports Truck, Aerospace Composite Parts Development

CAMX 2026: Lanulfi Moulds builds RIM, thermoforming, rotational molding and compression molding tooling for demanding truck and aerospace components, in addition to providing an integrated approach to tooling projects.

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CAMX

Hydraulic Press Systems Span FRP Forming Methods Support

CAMX 2026: Andritz Schuler will present its various composite press technology configurations, along with  life cycle service offerings like Metris Visual Die Protection.  

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Greene Tweed Cuts Lead Time 50% With Thermoplastic Composite Rapid Prototyping

New process balances features to reduce tooling complexity, compresses timelines via concurrent part and tooling design, completes mold fit-ups in 1-2 days and optimizes via faster, lower-cost evaluations.

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CAMX

Turnkey press systems target composite molding across thermoplastics, thermosets

CAMX 2026: Macrodyne Technologies showcases compression molding, RTM and prepreg press lines designed for complex composite part geometries and high-volume production.

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Aerospace

Toray expands NCAMP qualifications for aerospace-focused Cetex TC1225 LM-PAEK 

The thermoplastic composite (TPC) material system now has broadened qualification covering UD tapes and processing methodologies like AFP, ATL, OOA and others.

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Advancing the Thermoplastic Composite Battery Enclosure into Production

Having achieved its first few commercial series successes, Kautex Textron explains the design process for its Pentatonic battery enclosure platform, which comprise glass fiber/PP or PA6 and injection overmolding a compression molded laminate.

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Industrial CNC Routers
Turn-Key Pultrusion Systems
Advanced polymeric composites
CAMX 2026
Watt-Flex® cartridge heaters

Latest Compression Molding News And Updates

Coexpair will deliver advanced hot press for Safran new composites development lab

Advanced system will be used to develop next-gen thermoset and thermoplastic engine components using RTM, SQRTM, compression molding plus thermoplastic consolidation and hot forming processes.  

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Core

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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Takase Kanageta selects Plataine to scale production scheduling across multi-plant operations

AI-powered Production Scheduler supports the Japanese mold manufacturer and injection molder’s 2030 Digital Factory vision, enabling scalable growth and improved planning efficiency.

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Thermoplastics

Roctool runs live Thermal Fusion molding demonstrations 

JEC World 2026: Roctool, alongside partner Compose Mfg., is presenting an novel tooling process for the in-mold consolidation and assembly of TPC components with serial production potential.

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McNAIR Center unveils Roctool induction-heated platen press installation

Induction heating integration into 400-ton hydraulic press will provide significant support to McNAIR’s composites-related work with government and industry partners.

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Natural Fibers

Double-belt press process supports natural fiber impregnation in VIBRIO project

AZL Aachen implements vibration in double-belt press processes for bike saddle shell production, enhancing impregnation and boosting NFRP bending strength from 145 MPa to 484 MPa. 

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Featured Posts

Sentherm conductive polymers match aluminum thermal performance, cut weight

Tailored filler networks, anisotropic material design and manufacturing process control achieve hybrid  polymers for EVs, batteries and other automotive-related electronics with 95% of aluminum’s thermal performance and 25-45% reduced component weight.

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Cutting engine weight via thermoplastic composite guide vanes

Greene Tweed replaces metal stator vanes with its DLF material co-molded with a metal leading edge that meets performance, cost and high-rate production targets while cutting 4 kg per engine.  

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Thermoplastics

Thermoplastic composite materials and processing interactions

Selection of product material formats and their interactions with various process methods heavily influence a final TPC part’s properties and fabrication options. 

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One-shot compression molding enables main rotor blades that achieve 20,000 hours between overhauls

Hill Helicopters engineered composite main rotor blades using a novel single-cure manufacturing process for stiffness and mass distribution optimization.

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Improving hail impact resistance of discontinuous thermoplastic composite parts

Greene Tweed examines failure behavior, identifying key factors for improvement and demonstrating sufficient design for complex-shaped aeroengine components.

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Carbon Fibers

CFRP boosts power, drops weight for next-gen fire truck pumps

Carbon fiber enables KASE Pumping Systems to eliminate corrosion and increase durability, including a high-capacity 6,500-gpm, ultra-compact 200-pound pump that aids emergency services.  

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DJ Engineering on Thermwood LSAM
multi-component injection molding process
Airtech
release agents, purging compounds,process aids
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