Base Materials is strengthening its position as a technology-driven partner to the global subsea industry through strategic investment in materials, manufacturing and testing infrastructure.
Established in 2002, the company has built a reputation for developing high-performance syntactic materials from its UK manufacturing base. Following growing demand for advanced buoyancy solutions, Base Materials continues to expand its capabilities with purpose-built subsea production facilities in Birmingham.
The multi-million-pound investment supports the manufacture of low-density syntactic buoyancy materials and finished buoyancy modules for ROV, AUV and HOV applications. Equipped with a 39,000-litre calibrated buoyancy tank, specialist coating facilities and enhanced testing capabilities, this continued growth enables increased production capacity while maintaining rigorous quality standards.
Certified for the deepest environments
At the heart of the company’s subsea offering is the Subtec® range of syntactic buoyancy materials. Designed to perform in demanding underwater environments, Subtec® is suitable for applications operating at depths ranging from 2,000 to 11,500 metres. Manufactured using high-grade hollow glass microspheres within a proprietary thermoset polymer matrix, the materials deliver exceptional strength-to-weight performance and excellent resistance to water ingress.
Reinforcing its technology leadership, Base Materials became the first syntactic foam buoyancy manufacturer to achieve full DNV type approval (TAC) alongside DNV Approval of Manufacture (AoM) across its entire Subtec® materials range. Following extensive independent testing, all seven grades are certified for use at depths up to 11,500 metres, providing customers with independently verified performance across critical subsea applications.
A whole-life approach to buoyancy
Alongside the supply of new buoyancy modules, Base Materials offers a dedicated repair and refurbishment service designed to extend the operational life of existing assets. The service includes inspection, calibrated buoyancy testing, dimensional laser scanning, repair of damaged sections and inserts, and recoating with protective polyurethane skins.
This whole-life approach helps operators maximise return on investment while reducing waste and supporting more sustainable subsea operations.
Collaboration driving performance
Collaboration remains central to the company’s approach, with materials, modules and services developed in close partnership with customers to ensure reliable performance in demanding real-world environments.
With purpose-built production facilities, a fully DNV type-approved materials portfolio and growing global demand, Base Materials is well positioned to support the next generation of subsea vehicles and help set the standard for buoyancy performance in a deeper and more demanding underwater world.
For more information, visit www.base-materials.com.
First published in Ocean News & Technology Buyers Guide, 2026.