Resin Transfer Molding (RTM)

Resin Transfer Molding (RTM) is a popular manufacturing technique in composite production, involving the infusion of resin into dry fiber reinforcements within a closed mold. This process offers precise control over resin distribution, resulting in high-quality, void-free composite parts. RTM allows for the creation of complex shapes and intricate designs while maintaining consistent mechanical properties.

All-recycled, needle-punched nonwoven CFRP slashes carbon footprint of Formula 2 seat
Recycling

All-recycled, needle-punched nonwoven CFRP slashes carbon footprint of Formula 2 seat

Dallara and Tenowo collaborate to produce a race-ready Formula 2 seat using recycled carbon fiber, reducing CO2 emissions by 97.5% compared to virgin materials.

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Coast-Line Intl
Airtech

Latest RTM Articles

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Glass Fibers

Bcomp, Temca achieve intricate composite cladding for French school façade

A combination of flax and glass fibers went into the development of 880 openwork, shade-providing panels for an international school in France.

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Aerospace

VIDEO: High-rate composites production for aerospace

Westlake Epoxy’s process on display at CAMX 2024 reduces cycle time from hours to just 15 minutes.

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Marine

AmpliTex-constructed solar-powered ferry hits the Adriatic Sea

The Marservis PROeco is a mass transportation marine vessel using Bcomp natural fiber for interior parts in place of standard materials.

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RTM

KraussMaffei, AIM collaboration achieves HP-RTM carbon fiber wheel rims

KraussMaffei supported, coordinated and delivered compact production equipment tailored to design and process needs for high-quality automotive rims.

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Corebon induction heating

This sidebar to CW’s August 2024 feature article reviews this technology for more efficient composites manufacturing and why it aligns with Koridion active core molding.

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CAMX

Vacuum pack, seals, tubes, fittings enhance RTM process

CAMX 2024: RTM North Ltd. presents Vac Pack, as well as its custom seals, tubes and fittings, to be used in composites RTM.

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Knowledge Centers

The CAMX Forecast
The CAMX Forecast

Headed to CAMX? Preview the technology before the show!

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Sustainability
Sustainability

The composites industry is increasingly recognizing the imperative of sustainability in its operations. As demand for lightweight and durable materials rises across various sectors, such as automotive, aerospace, and construction, there is a growing awareness of the environmental impact associated with traditional composite manufacturing processes.

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CW Tech Days: Sustainability
CW Tech Days: Sustainability

This CW Tech Days event will explore the technologies, materials, and strategies that can help composites manufacturers become more sustainable.

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Alpha’s Premier ESR®
HEATCON Composite Systems
ColorForm multi-component injection
Eliminate Quality Escapes  With LASERVISION AI
Airtech International Inc.

Latest RTM News And Updates

RTM

Hybrid composite workcell supports thermosets, thermoplastics

CAMX 2024: Radius Engineering showcases its Hybrid Composite Workcell with the versatility to support a range of closed-mold processes monitored by its Insights control system.

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RTM

Molding technologies, integrated automation deliver streamlined production

CAMX 2024: Macrodyne engineers composites and rubber hydraulic presses for domestic and international customers, capable of handling large-scale production demands to more intricate projects.

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RTM

IMDEA introduces digital twin for real-time analysis of composite materials production

Newly designed digital twin by IMDEA and Technical University of Madrid researchers enables manufacturers to see inside composite materials as they are being produced, facilitating early detection of faults.

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Space

Bally Ribbons 3DMAT quartz composite is adopted for future NASA space missions

Named the NASA Government Invention of the Year, the 3D orthogonally woven materials supports structural and thermal performance needs for Orion mission and more.

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Infusion

Live demonstrations present closed molding advancements

CAMX 2023: The Composites One and Closed Mold Alliance demo zone returns with short but engaging exhibitions featuring vacuum infusion, reusable bag molding, light RTM and other technologies through the show.

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RTM

Reusable vacuum bagging, vacuum sealing solution

CAMX 2023: SWORL is highlighting its spray-fabricated reusable vacuum bags (membranes, foils) and a new sealing product for more sustainable, out-of-autoclave composites processing.

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recycle carbon fiber
NewStar Adhesives - Nautical Adhesives
Airtech
CompositesWorld
recycle carbon fiber

Featured Posts

Aerospace

Plant tour: Aernnova Composites, Toledo and Illescas, Spain

RTM and ATL/AFP high-rate production sites feature this composites and engineering leader’s continued push for excellence and innovation for future airframes.

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RTM

Designing an infused, two-piece composite baseball bat

With its Icon BBCOR bat, Rawlings leveraged its experience in braided fabrics and RTM to create an optimized, higher-performance two-piece design.

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RTM

From the CW Archives: The life and death of the BMW i3

A look back at the ambitious and impressive composites production system BMW developed for production of the all-electric i3 EV.

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Defense

Ballistic protection panels manufacturer relies on automation for high throughput, efficiency

Maine-based CW Top Shops honoree Compotech Inc. recently doubled its manufacturing space and team to produce modular composite panels for defense applications via light resin transfer molding (LRTM).

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Fabrics/Preforms

RTM, dry braided fabric enable faster, cost-effective manufacture for hydrokinetic turbine components

Switching from prepreg to RTM led to significant time and cost savings for the manufacture of fiberglass struts and complex carbon fiber composite foils that power ORPC’s RivGen systems.

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RTM

From the CW Archives: Fast-cure epoxies for automotive fabrication

Sara Black’s 2015 report on the development of snap-cure epoxies for automotive manufacturing still resonates today. 

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Airtech International Inc.

FAQ: RTM

What is RTM?

Resin Transfer Molding (RTM) is a popular manufacturing technique in composite production, involving the infusion of resin into dry fiber reinforcements within a closed mold.

What does RTM stand for?

Resin Transfer Molding (RTM).

What is Light RTM?

Light Resin Transfer Molding, or Light RTM, is a process by which composite products are manufactured using a closed mold system. The closed mold consists of an “A” side mold (base mold) and a semi-rigid “B” side mold (counter mold) that is sealed to the “A” side mold using vacuum pressure. Resin is drawn into the resulting cavity under vacuum.

The resin infusion may be assisted by a resin injection pump, which will accelerate the infusion process. Once an “A” side mold is cured, the “B” side mold is removed and the part is demolded from the “A” side mold.

Source: Light RTM

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