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.
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Metyx Metybond self-adhesive reinforcement achieves clean, efficient composite layup
Directly integrated adhesive on carbon, glass or hybrid multiaxial fabrics enables clean repositioning, uniform adhesive distribution and improved edge stability.
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ExxonMobil, Fraunhofer ICT to validate efficient composite vehicle component production via HP-RTM setup
Commissioned HP-RTM dosing unit and mold is operational for Proxxima system-based composite trials at Fraunhofer ICT and available to support industry trials.
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Proplast supports, distributes Composite Integration’s Ciject in Denmark
Official distributor, combined with Danish technical expertise and regional support, broadens access to Composite Integration’s resin processing equipment for composites production.
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Post Cure: NFPA-rated carbon fiber composite fire truck pump for firefighting, energy industries
Direct engine-driven systems or firetruck applications benefit from the lightweight, compact, high-volume centrifugal pump by KASE Pumping Systems.
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LIFT to lead new "Critical Materials Processing" program on ceramics, CMC
Multifaceted project aims to accelerate development and scale-up of ultra-high temperature material technologies including ceramic matrix composites (CMC) and carbon fiber as a precursor in CMC preforms.
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Composite Integration, Atech Composites deliver workshops in Taiwan focused on composites
From marine to aerospace to automotive, the global collaboration continues to engage customers across Taiwan and Southeast Asia, showcasing various fabrication and processing methods like RTM and LRI.
Read MoreKnowledge Centers
CW’s editors are tracking the latest trends and developments in tooling, from the basics to new developments. This collection, presented by Composites One, features four recent CW stories that detail a range of tooling technologies, processes and materials.
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Discover the types of sensors being used in composites, the physics on which they�re based, their installation, promised benefits and challenges, as well as the potential they offer for even further developments in smart structures.
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During CW Tech Days: Thermoplastics for Large Structures, experts explored the materials and processing technologies that are enabling the transition to large-part manufacturing.
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Latest RTM News And Updates
Composite consumables target surface improvements, infusion and RTM processes
CAMX 2025: Global technical textiles company Freudenberg Materials presents its portfolio of surfacing veils and Enka Solutions 3D polymeric filament structures used in flow media and spacers.
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Automated RTM, SQRTM enhance aerospace composites serial production transition
CAMX 2025: Coexpair, in partnership with Radius Engineering, combines equipment development and fabrication with engineering of composite parts, demonstrated in its European customer support, deliveries.
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Software platform improves composites manufacturing automation
CAMX 2025: Radius Engineering introduces Insights, integrated software that automates critical functions in RTM and SQRTM processes, boosting efficiency and reducing human error and training needs.
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Italian craftsmanship shapes RIM, RTM expertise
CAMX 2025: Lanulfi Moulds, serving a diversified portfolio, is available to discuss and demonstrate how its custom RIM/RTM molds can elevate performance, shorten cycle times and reduce overall production costs.
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Otto Aviation launches Phantom 3500 business jet with all-composite airframe from Leonardo
Promising 60% less fuel burn and 90% less emissions using SAF, the super-laminar flow design with windowless fuselage will be built using RTM in Florida facility with certification slated for 2030.
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Bcomp natural fiber composites to be used in future BMW Group production cars
Bcomp partners with BMW Group to integrate high-performance natural fiber materials into series production models, reducing CO2 emissions for exterior and interior car parts.
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Featured Posts
Next-gen fan blades: Hybrid twin RTM, printed sensors, laser shock disassembly
MORPHO project demonstrates blade with 20% faster RTM cure cycle, uses AI-based monitoring for improved maintenance/life cycle management and proves laser shock disassembly for recycling.
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Ceramic matrix composites: Faster, cheaper, higher temperature
New players proliferate, increasing CMC materials and manufacturing capacity, novel processes and automation to meet demand for higher part volumes and performance.
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Automating oxide CMC for higher part volumes
FOX Composites has adapted infusion and RTM for slurry-based matrices, commercializing its VASI and IFOX technologies for automatable, scalable, serial production of high-quality oxide ceramic matrix composite parts, already proven in flight missions and a pilot-scale line.
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Bucci Composites expands automotive production capabilities with facility addition, new high-ton presses
CW Top Shops recipient Bucci Composites shares an update on its facility expansion, automotive composites applications, sustainability, education initiatives and more.
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From prototypes to performance: Composites company makes inroads into new markets
Top Shops 2024 honoree Calian’s composites division blends R&D, rapid prototyping and scalable production with deep engineering integration and corporate synergy.
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Spanish startup to ramp up production of “recyclable” EV prototype
Liux’s BIG electric vehicle features multiple structural components manufactured via RTM from flax fabric and a thermoset resin said to enable the entire component to be recycled and reused again.
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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
