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.
Latest RTM Articles
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Multiyear Airbus Supply Agreement Continues Syensqo Materials Backing
The contract covers composites and adhesives that will support Airbus’ commercial aircraft, defense and space, and helicopter programs.
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Software Platform Automates RTM, SQRTM Process Control
CAMX 2026: Radius Engineering’s Insights platform automates vacuum leak checks, cure holds and resin degassing verification across workcells and injection systems.
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Albany Engineered Composites and A&P Technology Partner to Accelerate Next-Gen Braided Composite Solutions
Strategic collaboration combines braiding and advanced RTM to industrialize large composite structures for aerospace and defense.
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CCIC Launches Aegoli Acoustic Camera for Vacuum Leak Detection
System uses 140 microphones and ultrasonic imaging to detect vacuum leaks in composites manufacturing, improving quality and inspection traceability.
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Northstar RIBs Offers Range of RTM-Built Yacht Tenders
Northstar RIBs completes its Vega Lite lineup using its One-Shot RTM process, said to cut production time by 50% and result in a lighter, stronger boat.
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High-Precision RTM Expertise Enables Large-Format Composite Roof Production
CAMX 2026: Kinflare Composites demonstrates its RTM capabilities through a large-format truck roof project, engineering custom tooling and fixtures to meet tight dimensional tolerances.
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Latest RTM News And Updates
CompPair, Adultimum AG Assess LCM HealTech Resin Suitability in Real Production Environments
SNAPSHOT: Partners are testing healable composite materials in high-speed RTM production, with the first phase exploring sporting goods.
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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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DLR demonstrates crashworthy composite eVTOL for emergency urban operations
The multi-department project developed airframe structure and safe battery integration, combining an optimized, crash-safe structural design with low-waste, lightweight composite production processes.
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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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Coexpair to fabricate, demonstrate and test Lockheed F-35 composite parts using SQRTM 4.0
Under an MOU with Lockheed Martin, Coexpair will use a phased approach to drive innovation for the F-35 program in Belgium via representative composite parts production.
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Smart & Sustainable RTM 4.0 project advances high-rate production for large composite structures
SNAPSHOT: CTC Stade, Airbus and German consortium demonstrate induction heating, 2K resins, novel tool and preforming concepts and sensors in digitized process chain with energy monitoring and more.
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Featured Posts
JEC 2026 highlights: AFP-RTM integration, new vitrimer prepreg, mapping AFP data, metal coated fiber in battery cases and more
CW executive editor Ginger Gardiner discusses some of this year’s notable exhibits and new developments in composites.
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KAI demonstrates thermoplastic and infused structures for future airframes
Korea Aerospace Industries advances its expertise through a welded TPC fuselage section and resin-infused wing skin module and torsion box demonstrators.
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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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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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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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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
