A “composite” buoyancy system refers to a syntactic foam comprising glass microspheres and macrospheres held together within an epoxy resin system to create a homogenous matrix.
Composite buoyancy systems are cast using dedicated mould tooling providing repeatable consistent production and are therefore ideally suited in applications such as work class ROV’s, particularly on a multi-build requirement.
Each component within any given Balmoral syntactic foam is individually rated for specific operating depths resulting in a strong, lightweight composite formulation.
There is an overlap in the operating depth ranges which is caused by macro efficiency changes in design operating depths. This means that more efficient, lower density, composites may generate improved uplift for a given volume as the operating depth increases.
Composite buoyancy systems comprise an integrated shell to ensure maximum protection of the core material in the event of accidental impact.
Material values
Typical operating
depth (ft/msw)
Typical core density (kg/m3)
GRE
Carbon
1500/457
346
2000/610
358
3000/915
385
4000/1220
417
403
5000/1524
455
432
6000/1829
479
450
7000/2134
514
476
8000/2439
535
491
9000/3049
565
515
10000/3049
586
530
-Image reproduced with the kind permission of Fugro