Advanced Marine Composites — Built Where It Matters Most
From our founder hand-building carbon spars for skiffs to supporting every America's Cup campaign since 2003, our story started on the water and has grown with the sport. Today, our advanced marine composites power everything from Moths and offshore racers to superyachts, cruising yachts, and support craft, delivering the marine composite solutions that perform when it matters most.
We help marine engineers build lighter, stronger composites — trusted in every America’s Cup campaign since 2003.
It’s not just what we do — it’s who we are
Trusted by world-class industries.
Built for marine
We're not new to performance at sea.
Backed by 28 years of experience in elite sailing and marine innovation, C-Tech delivers carbon fibre components proven in the most demanding conditions — from battens and spars to structural tubes and custom components built to perform at sea.
28 + years
Of experience in high-performance composite manufacturing.
1000 + clients
Across defence, America’s Cup, and space exploration.
0.05 mm±
We are comfortable working in microns and can meet tolerances from as small as 0.05mm.
Backed by Champions
Trusted by Industry
From problem — to innovative solution.
We collaborate with you at every stage of the process. Our engineering team is hands-on from start to finish from early-stage solution design to prototyping, refining layups, and debugging production issues.
We work along side marine engineers and system designers to solving real challenges building integrated marine capability solutions.
Concept
Idea consultation stage
Design
Converting concept into design with CAD/Technical drawings
Prototype
Build, test & refine prototype
Production
Finalised part production
Fit-out
Machining, fitout and detailing
Delivery
QC checked and delivered
We don't just manufacture.
We innovate
Spars
Carbon masts, booms, spinnaker poles, prods, and more — lightweight, durable spars tailored to perform across dinghies, offshore racers, and superyachts. Built for strength, stiffness, and control.
Battens & Hardware
The hidden secret behind every high-performance sail — trusted by the world’s top teams for over 30 years. From 18ft skiffs to IMOCA 60s, superyachts to cruising cats, C-Tech custom-builds sail control systems that deliver.
Custom Components
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Our custom components can be anything from female-moulded parts to fully fabricated carbon fibre assemblies. Each piece is precision engineered and crafted to meet the unique demands of high-performance marine environments.
Marine Tubes
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We manufacture precision carbon fibre tubes custom-built to your specifications — engineered for stiffness, strength, and lightweight performance in demanding marine environments.
Foils
C-Tech designs and manufactures custom carbon fibre foils and structural reinforcements for advanced marine applications — from SailGP and Super Foilers to offshore rudder systems and high-performance production runs.
Spars
Marine Spars.
Built to Perform.
C-Tech marine spars are trusted by sailors and boatbuilders around the world — from foiling dinghy fleets to offshore racing yachts and performance superyachts. All our spars are custom-built using high-modulus prepreg carbon fibre, precision laminate placement, and autoclave consolidation to achieve maximum strength, durability, and bend requirements.
Our marine spar products include:
Carbon Masts & Booms
Lightweight, stiff, and tailored to class specs and load profiles.
Spinnaker Poles & Prods
Designed for easy handling and responsive control under pressure.
Reaching Struts & Jockey Poles
Strong, dependable, and built to meet the unique geometry of each boat
Whether you're chasing marginal gains in a skiff or dinghy, needing bulletproof hardware, or speccing a custom solution for a performance multihull or superyacht, C-Tech spars deliver performance you can rely on — race after race, mile after mile.
Battens & Hardware
Built for the Sail, Designed for Performance.
Behind every fast, reliable sail is a batten system doing the heavy lifting — and for over 30 years, C-Tech has been the leading supplier trusted by America’s Cup teams, offshore campaigns, sailmakers, and classes around the world.
Whether you’re chasing every ounce of performance in an 18ft skiff, relying on durability and speed in an IMOCA across the Southern Ocean, or looking for low-maintenance ease on your cruising cat — every C-Tech batten is custom-built to meet your boat, sail, and spec.
Our range includes:
Solid Plate Battens
For dinghy classes, Moths, and jibs where space and stiffness are key.
Hollow Tube Battens
From CT22s for 30-footers up to CT40s for 200ft+ superyachts — precision-tuned for flex and loaded performance.
FlexiFurl Battens
Designed specifically for furling sails, with smooth transitions and reliable furl compatibility.
Hardware Systems
Luff and leech end fittings, clewboards, custom batten receptacles and compression hardware — all engineered for long-term repeat use and high load cycles.
SnuffAir Inflatable Snuffers
Lightweight, compact, and robust solutions for safe spinnaker takedowns — adaptable to any yacht
We engineer battens around your sail designs and unique requirements. Our long-standing partnerships with top lofts and race teams, including America’s Cup teams, feed directly into the constant evolution of our products. From materials to moulding to fitting technology, our hardware and battens stay ahead — and bring that advantage to every boat we touch.
Custom Components
Custom Components — Built for Purpose
C-Tech engineers and manufactures precision custom carbon fibre components for elite marine applications. Our team works closely with designers, engineers, and race teams to develop lightweight, high-strength solutions tailored to exact project specifications. Examples of some custom components include:
America’s Cup control systems
Engineered for maximum reliability and exacting tolerances
Carbon dashboards and panels
Lightweight, stiff, and designed for superyachts and recreational launches
Waterproof camera housings
Fully custom, rugged enclosures built for marine conditions
Whether it’s a single one-off or a complex integrated system, we provide composites built to perform, endure, and impress.
Marine Tubes
Marine Tubes — Engineered for Strength and Precision
C-Tech specialises in producing marine-grade carbon fibre tubes made to order for a wide range of high-load and structural marine uses. Using roll-wrapped prepreg and autoclave curing, each tube achieves optimal fibre alignment, minimal void content, and excellent stiffness-to-weight ratios.
Our custom tubes often become critical components in:
Compression struts and accumulator cylinders designed to withstand high loads
Tuna tower frameworks and foldable chaseboat masts crafted for strength and corrosion resistance
Superyacht awnings, stanchions, swim ladder tubes, and telescopic masts requiring precision and durability
Tender fender tubes and other specialised marine assemblies tailored to project requirements
We collaborate closely with designers and builders to deliver tubes engineered exactly to the specs and demands of your marine build — whether for racing, commercial, or recreational vessels.
Foils
High-Stiffness Foils & Reinforcements
Engineered for elite-level performance — built to withstand the forces of high-speed foiling and offshore racing.
Using prepreg carbon fibre, precision moulding, and autoclave curing, our components are manufactured for extreme loads, low drag, and tight dimensional tolerances. We specialise in large or repeatable foil projects where consistency, accuracy, and performance are critical.
Whether it's:
Production-run high performance one-design foils for SailGP or the International Moth class
Custom lifting foils, canards, and reinforcement structures
Rudders and rudder stocks for offshore racing and high-performance yachts
We partner with you to deliver tailored solutions that meet your structural loads, weight targets, and hydrodynamic goals. These are not off-the-shelf dinghy components — they’re performance-grade systems built for serious speed.
America’s Cup
Aerodynamic Systems Built to Perform Under Pressure
Precision composite engineering honed in elite sailing — now applied to UAVs, missile platforms, and aerodynamic defence systems.
C-Tech supplied carbon fibre components to multiple America’s Cup teams, including foils, wings, and load-bearing structures. These ultra-light, fatigue-resistant components were engineered for speed, control, and aerodynamic efficiency — the same principles that now underpin our work on defence-grade UAV fuselages, control arms, and loitering munitions.
Wireline Logging
Built for Harsh Environments. Trusted to Protect Payloads.
Originally developed for geophysical sensor systems, these ruggedised carbon fibre tubes now support defence field tech and mobile surveillance applications.
Designed for the oil and gas sector, our wireline tubes withstand shock, vibration, and repeated mechanical load in extreme terrain. With precision-machined interfaces and proven fatigue resistance, these tubes now serve as structural enclosures for tactical communications, field-deployable sensors, and ruggedised defence payloads.
Ice Drill
Modular Strength for Expeditionary and Recon Platforms
Engineered for lightweight performance in polar expeditions, our modular tube systems are ideal for mobile, mission-critical defence systems.
Developed for deep ice drilling missions in Antarctica, this modular carbon fibre drill string was designed for easy field transport and high axial strength. These same capabilities make it ideal for military recon equipment, portable antenna masts, or remote field systems — anywhere ultra-light, strong, and field-assembled components are needed.
Telescopic Comms Tubes
Deployable Carbon Fibre Tubes for Tactical Comms & ISR
Large-diameter carbon tubes custom-built for defence clients needing fast-deploy, corrosion-resistant comms infrastructure.
These telescopic carbon fibre systems are used to deploy antennas, radar equipment, and mobile surveillance gear in operational defence environments. With custom interface design, high stiffness, and rapid extension/retraction features, they provide reliable performance in field communications, observation, and tactical command systems.
Marine Composite Manufacturing
How We Build
Our composite marine manufacturing capability covers the full process stack, from design and tooling through production, inspection, quality control, and final delivery, ensuring the right solution.
Autoclave Curing
Void-free consolidation under heat and pressure.
Our pressure- and temperature-controlled autoclave cures components up to 15.3 m long and 1.44 m in diameter. Operating at up to 180°C and 7 bar, autoclave curing ensures optimal fibre compaction and resin flow — producing void-free, high-integrity laminates trusted in space, marine, and defence.
Prepreg Accuracy
Consistent fibre alignment, optimal resin content.
We exclusively use aerospace-grade prepreg materials for tightly controlled resin content and fibre orientation. Combined with our temperature- and humidity-controlled clean room and automated ply cutting systems, we achieve consistently high laminate quality across every part — from one-off prototypes to production runs.
CNC Precision
Exacting tolerances, repeatable results.
Our Routech R200 5-axis CNC router handles subtractive manufacturing of moulds, jigs, cores, and finished parts — with an XYZ bed size of 5,500 mm × 1,500 mm × 1,000 mm. We also operate a 1.5 m ×10 m Eastman S125 flatbed plotter for ply kit cutting. This automated accuracy streamlines production and ensures every part fits and performs precisely as designed.
Advanced Tooling
High-performance tooling for high-performance parts.
We manufacture carbon fibre, aluminium, and board tooling in-house — supporting complex one-offs and reliable production runs. Our proprietary roll-wrapping machines deliver precise laminate consolidation for tubular structures up to 15 m long and 1200 mm in diameter. We also offer additive manufacturing (3D printing) in plastic and titanium —ideal for prototypes, short runs, and complex geometries that can't be machined.
Quality You Can Trust
Built-in quality at every step.
We apply stringent quality control throughout the manufacturing process —including ultrasonic non-destructive testing (NDT), dimensional QA, and resin system traceability. From OEM marine hardware to aerospace components, our parts are made to perform— and proven in the most demanding real-world conditions.
Design Capability
In-house design. Tailored engineering. Real performance.
Our experienced design team combines deep composite knowledge with practical engineering skill. We offer full design and laminate development, mechanical simulation, tooling design, and iterative prototyping — ensuring your product is strong, light, and built for its environment.
End-to-End Service
From concept to completion — all under one roof.
C-Tech manages the full project lifecycle in-house:
- Concept development
- Composite engineering
- Tooling & Prototyping
- Full-scale production
- Testing & QA
- Final delivery
This integrated model gives you faster lead times, streamlined communication, and complete confidence in the final result. We work with you from first sketch to finished part — and everything in between.
Every part is designed and engineered in-house, allowing full traceability and control — from fibre orientation and layup sequences to curing cycles and final inspection.
This isn’t just about making parts that last. It’s about delivering the exact performance profile you need, every time.
From custom foils and structural tubes to sail hardware built to survive the Southern Ocean — we solve performance challenges with a deep understanding of the loads, flex profiles, and marine dynamics our customers face.
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Customising Composites for Winning Teams
High-Performance Battens for Sail Optimisation
Prototyping To Final Composite for The America's Cup
High-Performance Battens for Sail Optimisation
We custom-builds sail battens for every class and application — from one-design dinghies to offshore racing maxi yachts. Our battens are pre-profiled to match your sail designer's specification, built from our proprietary carbon fibre layups, and tested to outperform on the water. Watch how we move from robust prototype to weight-optimised final design using FEA (finite element analysis) combined with physical testing — aligning failure modes and minimising weight to deliver components that exceed expectations.
Global Facilities.
Performance in Field.
European Manufacturing Facility - Spain
C-Tech Headquarters – New Zealand
Trusted by Experts
C-Tech components are specified and trusted by the world's leading naval architects, yacht designers, sail makers and racing teams. From one-design classes to custom superyachts, our composites are the choice of those who demand the highest performance and consistency.
Cesar Dohy
John Parker, GBR
Dougall Love
Rig Construction Coordinator
Gautier Sergent, Head of R&D
Sail Loft Manager
Christen, Norway
How carbon enables better
solutions for marine
Carbon fibre outperforms traditional materials where it matters most. Our composites are lighter, stronger, more resilient — and engineered for the demands of real-world marine environments.
Weight Reduction
Enhanced Performance
Material Resilience
Agile Prototyping
Tight Tolerance & Consistency
Customisation
Supply Chain Security
Advanced Processing
Weight Reduction
Enhanced Performance
Material Resilience
Agile Prototyping
Tight Tolerance & Consistency
Customisation
Supply Chain Security
Advanced Processing
Schedule Your Marine Project Consultation
If you're working on a marine composite project — whether it's a one-off component or a production series — speak to our engineering team. We'll advise on materials, process, tolerances and lead times.
Buyers Guide
Not sure which carbon fibre tube is right for your application? Download our free Buyers Guide. It covers tube profiles, laminate options, surface finishes, how to specify your dimensions, and how to choose between standard and bespoke carbon fibre tubes for your project.
