Enhancing offshore wind foundations with a custom-engineered grout seal solution
A French offshore wind operator approached us for a sealing solution for a project in the North France area. The project required over 60 grout seals for monopile/ transition piece (MP/TP) connections, each needing to support a significant load cases of 2.9 bars in operation. With an overall diameter of 6.5–7 metres, these grout seals were critical to ensuring a successful offshore connection campaign.

The highlights
Custom-engineered solutions
Designed to meet each project's unique geometry and high-load requirements, ensuring a precise and reliable fit.
Proven performance & reliability
Successfully installed across various offshore projects, with designs backed by Finite Element Analysis (FEA) and internal testing.
Innovative materials for maximum durability
Manufactured using high-performance materials, with optional fibre reinforcement for enhanced strength.

Solution
We delivered a custom-engineered, fit-for-purpose solution tailored to the specific demands of the project. Using a combination of high-performance materials and Finite Element Analysis (FEA) modelling, the seals were designed to handle the operational load requirements while maintaining long-term durability.
To ensure a precise fit and optimal performance, we designed the grout seals to match the unique geometry of the foundations. In addition, we provided on-site technical assistance at the TP manufacturing site, ensuring seamless installation and offshore readiness. We worked closely with the customer’s project team throughout the process to guarantee correct installation and optimal performance in real-world conditions.

Result
We successfully developed and delivered a high-load-capacity grout seal solution, enabling the project to move forward with reduced maintenance needs and enhanced long-term stability. Throughout the project, we continuously improved support, leading to a mature and optimised product that met the customers’ requirements.
This success story demonstrates our ability to overcome complex offshore wind challenges, delivering reliable sealing solutions that ensure long-term performance and project success.
Contact our expert team today on [email protected] to discuss your next project.