GRP Subsea Structures Designed to Reduce Installation Cost and No Corrosion Risk

With decades of experience, CSUB stands as a global leader in offering certified composite subsea structures for the energy industry. Our lightweight, non-metallic composite structures are designed to reduce offshore installation cost, corrosion-related maintenance and deliver reliable long-term performance in demanding subsea environments. Read more about us

Why CSUB Has Been Chosen for 500+ Subsea Projects

Significantly Reduced Installation Cost

Lightweight, stackable GRP subsea structures are designed to reduce number of lifts, simplify offshore handling and make better use of deck space. This can help lower transport and installation costs, ease crane and vessel requirements, and reduce offshore time.

50+ Yrs of Maintenance Free Performance

CSUB’s non-metallic subsea structures are designed for 50+ years of service life with no corrosion, no anodes reduce inspection and maintenance burden over the asset life.

Qualified for Demanding Offshore Projects

Our GRP subsea structures have been used across demanding offshore projects for decades. Proven use, qualification and project documentation help reduce technical risk and give customers confidence in choosing a proven subsea structure partner.

Co-Engineering Support

Every structure is engineered to suit project requirements, installation method and offshore constraints. CSUB works closely with customers on design, structural analysis, transport, lifting and delivery planning to improve installation practicality and overall project economy.

SUBSEA SUPPORT STRUCTURES

Sleepers & Buckling
initiators

Crossings & Bridges

Pipeline freespan
correction

Foundations

SUBSEA PROTECTION SYSTEMS

Subsea protection covers

Subsea production
systems (SPS)

Subsea cable protection

Subsea hatches

J-Tube Ramp for Cable Protection and Support

CSUB’s GRP J-Tube Ramp is designed to support and protect cables and flexibles at the interface with offshore structures. The lightweight GRP design helps simplify handling and installation while providing controlled cable support at the J-tube transition, including applications in offshore wind turbines, offshore substations and other cable-critical offshore assets.