Marine is where C-Tech began — and where we continue to lead.

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 composites power everything from Moths and offshore racers to superyachts, cruising yachts, and support craft.

Industries
MarineDefence

With 28+ years experience in carbon fibre composites, C-Tech is trusted by the world’s top to deliver strength, precision, and performance in the harshest conditions. 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.

25
+ 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

End-to-end support for technical teams

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

Our Marine Solutions

We don't just manufacture.

We innovate.

Every component is engineered in-house, proven on the water, and trusted to perform.

From battens to foils, we rethink, refine, and push the limits of marine performance — delivering smarter, faster, stronger solutions that give teams the edge.

Why Choose C-Tech

Because Performance

Demands Precision.

At C-Tech, every part we make is built to perform —engineered with precision, tested for strength, and trusted in the world’s most demanding environments.

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. 

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.

Why Marine Teams Choose C-Tech

Advanced Composite Engineering for

Performance on Water.

Engineered for Harsh Environments

Every tube, spar, and component we produce is engineered to resist saltwater corrosion, UV exposure, water ingress, and constant mechanical stress — delivering long-term reliability in demanding marine conditions.

Precision Solutions for Marine Performance

We work closely with designers, sailors, and marine engineers to develop lightweight, high-strength carbon components tailored to your needs — optimised for seamless integration, precise bend characteristics, and minimal weight.

Proven, Where Performance Matters

From America’s Cup campaigns to offshore racing and expedition yachts, our technology is trusted where reliability and performance are non-negotiable.

Fast, Flexible Marine Development

Our agile engineering and in-house manufacturing allow us to respond quickly to project changes and tight timelines — delivering precision components without compromising on quality.

Quality You Can Rely On

We apply aerospace-grade quality systems to all marine projects, ensuring consistent performance, full traceability, and robust documentation — with ISO 9001 certification underway and expected mid-2025.

SlickJS Slider Instructions

Step 1: Add head and body code to page settings.
In the Navigator, find the embedded code blocksHead Code (Delete After Copying) and Body Code (Delete After Copying)

Open the Head Code (Delete After Copying) embed, copy the code and place it in the Inside <head> tag custom code section of the page settings.

Open the Body Code (Delete After Copying) embed, copy the code and place it in the Before </body> tag custom code section of the page settings.
Step 2: Connect CMS Collection to Slider (Optional)
Find the div block with class .slider06_component and add a Collection List inside of it.

Add the combo class slider06_wrapper slider-wrapperto the Collection List Wrapper

Add the combo class slider06_list slider-listto the Collection List

Add the combo class slider06_item slider-item the Collection Item

Find the existing div block with class .slider06_wrapper and delete it. (Your CMS Collection List now replaces this)
Step 3: Renaming Classes
We recommend to use {Finsweet Folders from the {Finsweet Chrome Extension to quickly update your class names for this section. Using the Folders tool, you can find and rename all instances of slider06 within the project.

Please make sure that the following combo classes stay applied to the specified elements:
slider-wrapper is applied to the Collection List Wrapper or Div Block containing the slider-list and
slider-list is applied to the Collection List or Div Block containing the slider-item
slider-item is applied to the Collection Item or Div Block for each individual slide
Optional: Delete slider06_arrows to remove the custom navigation arrow buttons.
Optional: Use slick-current as a combo class on the slider-item to style the currently highlighted/focused slide.
Step 4: Style Away!
We recommend adding a slider06_contents div block to the slider-item and then add images, text, and custom styling as necessary to achieve the look you are going for.

Please note that some aspects of the design of the slider will come from the "settings" in the slider code, such has number of slides displayed at each breakpoint. If you are trying to make significant changes from the base structure of this slider, please make sure to review the different setting options that SlickJS offers.

Trusted by Experts

We collaborate with the world’s best sailmakers, designers, and teams, and we’re proud to be a trusted supplier across every major discipline in the sport.

“Incidence Sails developed a strong, reliable and long-lasting relationship with the C-Tech products over the years, specially through the supply of the CT SailBattens range that have always matched and exceeded our highest expectations in terms of durability and stiffness compliance to our specifications. Last but not least the supply chain works perfectly even during tricky times.”
Incidence Sails

Cesar Dohy
“For over 20 years, C-Tech has consistantly delivered quality products and a professional service. We know we can rely on their composites but it's the in-house experience that really adds value. Despite being on the other side of the world, C-Tech is always on hand with advice and support.”
One Sails
John Parker, GBR
“Doyle Sails works with a significant number of Grand Prix race yachts and Superyachts globally and in nearly every project C-Tech is on-board as our supplier for carbon battens and systems. A very high quality, performance product, proudly made in New Zealand, led by a team of engineers who are constantly innovating - it is a pleasure to work with C-Tech.”
Doyle Sails
“We’ve had our C-Tech SnuffAir for 12 months now and have used it flawlessly. It’s even better than I expected actually, this is a massive sail and personally I don’t think you could beat this”
Romanza Owner

Dougall Love
“C-Tech’s flexibility in design and build, combined with a willingness to collaborate on ideas, helped in producing the best components for our needs, giving us the best results.”
ETNZ

Rig Construction Coordinator
“Battens play a key role in the performance of the sails. If the shape of the batten does not exactly match the shape of the sail, they fight each other and that can be quite detrimental. They must be light and strong. C-Tech are able to build specified stiffness and bend profiles very accurately and repeatedly.”
INEOS Team UK
Gautier Sergent, Head of R&D
“The Volvo Ocean Race pushes everything to the limit, C-Tech delivered on performance, durability and service.”
Volvo Ocean Race, 2013-2018
Sail Loft Manager
“C-Tech products are phenomenal. Our boat has gone better than it ever has before. Every one of their products is integral to our boat speed and durability in both cruising and racing.”
P2 Team (Briand 123)
“It has been a game changer switching to FlexiFurls. They have given us true race performance in our furling sails. Also the service has been tops, so really happy all around.”
Peter Homberg
“We like using C-Tech battens with our grandprix and large yacht sails. The fasteners and hardware are corrosion resistant, rust free and provides easy sail care for us and our customers. The battens and hardware are engineered and make by sailors for sailors, they work perfect every time.”
Ullman Sails, IncBruce Cooper
“C-Tech has been our trusted supplier for battens and batten hardware for over ten years.”
One Palma
“We have used your product for many years and you know we call your battens a bit of a magic wand. They are a tool, but are hidden within the sail and you don’t see them. Just like there are so many bad tools out there, there are also so many bad battens. C-Tech battens are the tool that can actually make a bad sail look better, and make a good sail look great.”
North Sails

Christen, Norway
“We like using C-Tech battens with our grandprix and large yacht sails. The fasteners and hardware are corrosion resistant, rust free and provides easy sail care for us and our customers. The battens and hardware are engineered and make by sailors for sailors, they work perfect every time.”
Ullman Sails, IncBruce Cooper
Advantages of Carbon Composites

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.

Up to 70% lighter than metal alternatives — engineered to stand up to required strength.
Whether you're looking for increased strength, stiffness or specific bend characteristics we can create optimised custom laminates to deliver your requirements.
We understand composites and how they work and process them in the most advanced way. We blend the best of composite materials to stand up to design requirements whether it is corrosion, applied loads or deflections.
From concept to part in record time. Our agile production model supports rapid development cycles — perfect for early-stage defence innovation.
C-Tech has come from a different heritgae of precise engineering. We set ourselves apart by paying attention to tolerances, fits and production repeatability.
Tailored layups. Localised reinforcement. FEA-optimised designs. All built to spec and ready to integrate.
End-to-end traceability and defence-grade compliance. ITAR-aligned. ISO9001 on the way.
We use the most advanced composite processing methods to ensure the best quality. Including design, CAD, FEA, autoclave curing, CNC machining, ultrasound testing.
Request a Technical Consultation

Schedule Your Marine Project Consultation

C-Tech. Engineered Precision. Proven Offshore.

Talk to an Expert

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