Closed Mould Composite Manufacturing
Advanced closed mould RTM techniques producing lightweight, high-strength parts with superior consistency and detail.
Precision Composites for Demanding Applications
Resin Transfer Moulding (RTM) is a precision-driven process ideal for producing high-strength, high-finish composite parts at scale. With over 50 years of experience, we've delivered thousands of RTM components worldwide, trusted across industries from automotive to renewable energy. RTM is a closed-mould process that produces exceptionally strong, lightweight, and dimensionally accurate composite parts. It's the go-to method for high-performance applications where surface finish, repeatability, and structural integrity are critical.
Trusted Across Industries
RTM is widely used in:
- Automotive: Body panels, structural supports, EV enclosures
- Aerospace: Interior panels, fairings, ducts
- Renewables: Wind turbine blades, solar panel housings
- Rail & Infrastructure: Cladding, seating, access panels
Why Choose RTM?
- Superior Surface Finish: A-class finish on both sides - ideal for visible or aerodynamic parts. Parts can be gelcoated on both sides.
- Dimensional Accuracy: Closed moulds ensure consistent thickness and tight tolerances.
- High Fibre Volume: Up to 65% fibre content for maximum strength-to-weight ratio.
- Cleaner Process: Minimal emissions and waste compared to open-mould methods.
Over 50 Years of Composite Excellence
We've been at the forefront of composite manufacturing for over five decades. In that time, we've produced and delivered thousands of RTM components to clients across the UK and around the world. Our parts are trusted in critical applications across transport, energy, defence, and beyond - a testament to our craftsmanship, consistency, and commitment to quality.
Ready for High-Performance Results?
Whether you need repeatable precision or structural strength, our RTM capabilities deliver. Get in touch to discuss your next project - we'll help you find the right solution.
RTM vs Other Methods
| Feature | RTM | Hand Lay-Up | Chop-Spray |
|---|---|---|---|
| Surface Finish | High-gloss, both sides | One-sided | One-sided |
| Dimensional Accuracy | Excellent | Moderate | Moderate |
| Fibre Volume Control | High (up to 65%) | Low to moderate | Moderate |
| Labour Intensity | Low (automated injection) | High | Moderate |
| Tooling Cost | High (closed moulds required) | Low | Low |
| Ideal For | High-volume, precision parts | Prototypes, low-volume | Medium-volume, large/curved parts |
The Process Behind RTM
1.
Dry Fibre Lay-Up
2.
Closed Mould Injection
3.
Controlled Curing
4.
Demoulding & Finishing
Our Projects
-
TBL600 Airport Fibreglass
Manufactured durable GRP tug components, ensuring rapid replacements, minimising downtime, supporting continuous airport operations worldwide.
Learn More -
F1 Rolex Design
We were commissioned to manufacture a large, specialised sign for a client, to be used by Rolex to promote their luxury timepieces across the global Formula 1 season.
Learn More -
XBOX One Launch
Our team was commissioned to manufacture a large sectional moulded dome featuring the iconic Xbox branding.
Learn More -
Baggage Chute Modification & Relining – Manchester Airport
A major UK contractor approached us to resolve ongoing performance issues with several baggage-handling chutes at Manchester Airport.
Learn More -
Rooftop Stairwell Pod – Somerset Hospital
Kier Construction appointed us to design, engineer, manufacture and install a bespoke rooftop stairwell pod for Somerset Hospital.
Learn More
