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Let’s work together

Are you a vessel mooring system designer? Our team would love to work with you. Using our mooring lifetime models, we can guide you through our portfolio of Dyneema® fibers and help you design the ideal performance and highest reliability into your system.

  • Superior performance
  • Competitive advantage
  • Premium systems
  • Guaranteed certifications
  • Sustainability credentials
  • Technical support and customer service
  • Secure supply and traceability
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Dyneema® grades for vessel mooring

Dyneema® SK78 fiber

If creep, abrasion, temperature, durability, and/or fatigue are critical issues in your application, this is the grade for you.

Dyneema® DM20 fiber

FSRU mooring is best with rope made with Dyneema® DM20 fiber.


Both Dyneema® SK78 and DM20 fiber are available as bio-based options. Bio-based Dyneema® fiber offers the exact same performance characteristics as conventional Dyneema® with the added benefit of CO2 savings.

Dyneema® product portfolio
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Our holistic lens offers clear focus

2018 saw the dawn of a new era for mooring ropes, with the publication of the fourth edition of the OCIMF’s Mooring Equipment Guidelines (MEG4). These guidelines – whose development Dyneema® is proud to have been a part of – call for a holistic approach to mooring rope design; one that considers not only the characteristics at the moment of delivery, such as line break force and rope diameter, but also the overall lifetime performance. When you buy a mooring rope, you can now access data on angled endurance, material breaking force at elevated temperatures, axial compression resistance, and more.

Find out more about MEG4

At Dyneema®, we welcome this change. In fact, it reinforces our decision to focus our developments on improving the reliability of mooring ropes made with Dyneema® SK78, rather than concentrating purely on initial break strength (like other fiber manufacturers do). At the same time, we recognize the trajectory of the mooring industry toward use-specific design. Vessel configurations, traffic patterns and port conditions are all different, and we’re committed to supporting designers in finding the right mooring solutions for your particular setup. 

Design for sustainability

Not only is Dyneema® the world’s strongest fiber™, but it also has the lowest carbon footprint per unit strength of any high-performance fiber. Better yet, it’s now available in bio-based form (in fact, it’s the world’s first ever bio-based HMPE fiber).

Bio-based Dyneema® has a carbon footprint 90% lower than generic HMPE – and you can still count on the exact same quality and properties as with conventional Dyneema®.

Find out how we can help you meet your sustainability targets.

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No standard tests? No problem – we've built our own

Don’t worry: our proprietary, state-of-the-art tests have been carefully designed to simulate real-world conditions and performance. In fact, we’re the only fiber manufacturer to test at both fiber and rope level. Our uniquely comprehensive methods mean we can use your travel patterns and from that calculate the exact Dyneema® fiber grades you need for your vessel mooring system – all according to its operations, environment, and lifetime requirements.  

We love the challenge of finding the ideal solution for every vessel mooring system designer. After all, not only do more durable mooring ropes need less frequent replacement – which is better for both planet and costs – but high safety and reliability in mooring operations can only be reached by using predictive models based on tangible, use-specific testing. 

Tension Fatigue Test

With MEG4 came the introduction of standardized testing for tension-tension fatigue in mooring tails – and we believe the next edition of the OCIMF guidelines could incorporate tension-tension fatigue testing for mooring ropes, too. That’s why Dyneema® has built fatigue testing equipment to monitor the fatigue lifetime at both fiber level and rope level. At the rope level, we use a tube oven to accelerate tension fatigue and carry out our experiments in a way similar to that prescribed in MEG4 for mooring tails.

And there’s more. By coupling these data with our DNV-certified fatigue performance model, we can help you assess the longevity of your mooring ropes and give you the confidence to set performance-driven retirement criteria.

Fairlead Abrasion Test

Because of their contact with surfaces under high pressure, mooring ropes inevitably face external abrasion. For decades, fiber-level testing of abrasion performance – such as yarn-on-yarn testing or hex-bar testing – has yielded comparative results for fibers. But these tests can’t be scaled up to assess ship-size HMPE mooring lines, making them a far-from-accurate insight into the types and impacts of abrasion faced by mooring operators onboard their vessels. Enter Dyneema®'s state-of-the-art abrasion tester. Designed and built to simulate real-world abrasion, this equipment runs mooring ropes over commercially available fairleads, using interchangeable testing surfaces that let us mimic your specific fairlead conditions. Experiments can be run dry or wet, with a variety of line tensions and frequencies, and there's even the option to monitor the process using inspection cameras and thermal sensors. 

Creep Performance Tool

Polymer agility is key to manufacturing HMPE lines – but that same flexibility can worsen a rope’s creep (when the long molecular chains slide along each other, elongating the rope). This is a notorious issue with fiber-based mooring ropes, so when you’re designing a vessel mooring system, it’s crucial to be able to accurately predict mooring rope performance over time.

During a multi-year research program, Dyneema® has developed the Creep Performance Tool, which considers the type of HMPE as well as parameters including temperature, time, and tension. It’s a powerful tool for predicting creep rate and elongations as well as estimating creep lifetime. And it is DNV qualified. 

Rope Temperature Model

From ambient temperature to internal friction, there are different factors that can affect a mooring line’s operating temperature – and consequently its durability, reliability, and safety. Designing a mooring system that performs in all kinds of climates and weather systems (especially those with extremely low or high temperatures) can therefore be a major challenge for designers. With our core temperature modeling tools for mooring ropes, Dyneema® can help you accurately predict how ropes will behave in environmental conditions ranging from the Middle East to the Arctic.

How we work with you

We know that every collaboration is different – just like every vessel mooring system is different. But no matter what you need, our technical centers, research scientists, engineers, and customer support personnel across the globe work closely with you to facilitate every stage of design, production, and beyond.

Talk to our experts about designing your mooring system with Dyneema® fibers.

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  • We help you identify the performance criteria that will give you a competitive advantage in your market.
  • We explain the performance characteristics of each of our fiber grades.
  • We support with specifying the exact grades, components, and coatings you need for your system.
  • We identify partners who can tender for your business.
  • We assist with technical specification during production.

Preferred. Trusted. Certified.

In a high-stakes industry like mooring, certification matters. Using Dyneema® fiber can help you secure the recognition you need for your vessel mooring system: our fibers are renowned the world over for their outstanding quality, consistency, and performance. Contact us to find out more about our third-party certifications.

The maritime supply chain is vulnerable to fake mooring certificates. Always authenticate third-party certificates to protect the safety of your crew.

Find out how to authenticate mooring certificates

Contact our experts

We’re manufacturer agnostic, so we can advise you before you start the tender process. We’re not rope suppliers, so designing your system with us doesn’t restrict your tender process. And we’re always happy to discuss your specific mooring system design requirements – so contact us now.

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