Integrated Land, Air & Sea Technologies
Subsea Buoyancy
Syntactic foam blocks, CNC-machined modules and application engineering provide subsea buoyancy engineered for the mission.
Syntactic foam combines lightweight microspheres with a polymer matrix for low-density, high-strength solid buoyancy, manufactured across four standard grades and a full range of machined product forms.
Stable buoyancy starts with material engineered against pressure. Syntactic foam combines lightweight microspheres with a polymer matrix for more payload, lower energy demand and a stable working state underwater.
Material
Platform
Low-density solid buoyancy, engineered to resist all-direction hydrostatic pressure in marine environments.
High Strength
Resists all-direction hydrostatic pressure in marine environments.
Low Water Absorption
≤1% typical across the standard FX range.
Low Density
0.36–0.42 g/cm³ across the four standard grades.
Machinable
CNC-ready for custom profiles, interfaces and module geometry.
Standard
Grades
Four standard grades cover 500–1,000 m operating depths. Select density and pressure margin together, not independently.
FX Grade Comparison
FX360 · FX380 · FX400 · FX420| Specification | FX360 | FX380 | FX400 | FX420 |
|---|---|---|---|---|
| Density | 0.36 ± 0.01 g/cm³ | 0.38 ± 0.01 g/cm³ | 0.40 g/cm³ | 0.42 g/cm³ |
| Water absorption | ≤1% | ≤1% | ≤1% | ≤1% |
| Recommended / max depth | 500 m | 600 m | 1,000 m | 1,000 m |
| Standard block format | N/A | N/A | 320 × 320 × 100 mm | 500 × 500 × 100 mm |
| Hydrostatic test pressure | N/A | N/A | >10 MPa | >14 MPa |
| Compressive strength | N/A | N/A | >15 MPa | >20 MPa |
| Volume modulus | N/A | N/A | >1,800 MPa | >2,500 MPa |
| Best suited to | ROV/AUV buoyancy, landers, sensors, survey equipment | Missions approaching 600 m depth margin | Tools, trenchers, standard buoyancy blocks | Demanding 1,000 m missions needing pressure margin |
Customization
Standard blocks become mission-ready modules through machining. Geometry, interfaces and coatings are engineered around the installation.
- 01MaterialSelect grade by depth, load and buoyancy target.
- 02MachineCNC profiles, cavities and interfaces.
- 03ProtectPaint, polyurethane or polyurea coating.
Result: buoyancy that fits the vehicle, not a vehicle redesigned around the buoyancy.
Applications
One material platform supports vehicles, cables and subsea infrastructure.
ROV / AUV
Vehicle buoyancy and spare-part modules.
Cable Systems
Cable floats, laying equipment and umbilicals.
Subsea Tools
Trenchers, landers and instrumentation.
Infrastructure
Pipeline, riser, beacon and mooring buoyancy.
Product
Range
Standard blocks, machined modules, float balls, vehicle buoyancy and cable tooling.
Standard Blocks
Stock formats and density grades.
Machined Modules
CNC cavities, profiles and interfaces.
Large Modules
Vehicle and equipment buoyancy.
Float Balls
Spherical buoyancy for deepwater systems.
AUV Buoyancy
Hydrodynamic vehicle-specific forms.
Cable & Tooling
Cable laying, trenching and infrastructure.
Product
Photography
Representative photography from the supplied product overview.
Standard Blocks, FX Density Grades
CNC-Machined Module
Float Balls, Deepwater Buoyancy
Large Modules, Yard-Stacked
Module Packaged for Shipment
Field-Deployed Buoyancy Module
Product
Specifications
Typical density, dimensions and depth ranges from the supplied product portfolio.
Representative Product Specifications
| Product Form | Density | Representative Dimensions | Depth | Technical Notes |
|---|---|---|---|---|
| Standard blocks | 0.36–0.58 g/cm³ | 320 × 320 × 100 mm 500 × 500 × 100 mm | 300–6,000 m | CNC machinable; custom dimensions |
| Float balls | 0.42–0.56 g/cm³ | Ø200–Ø350 mm | 1,500–5,000 m | Multiple density/depth combinations |
| ROV buoyancy | 0.36–0.40 g/cm³ | 125 × 50 × 300 mm 700 × 630 × 10 mm | 250–700 m | Custom vehicle and spare-part forms |
| AUV buoyancy | 0.36–0.55 g/cm³ | 108 × 40 × 150 mm 300 × 300 × 100 mm | 300–4,500 m | Hydrodynamic machining available |
| Cable / pipeline floats | 0.40–0.51 g/cm³ | Ø150 × 100 mm Ø500 × 6,000 mm | 700–3,000 m | Segmented or clamp-on configurations |
| Custom modules | Project-specific | Customized to installation envelope | 300–6,000 m | Polyurea, polyurethane or protective paint |
Engineering
Support
SSAEPL supports the path from load case to delivered module. Bring the mission inputs and leave with a manufacturable buoyancy solution.
- 01DefineDepth, buoyancy target, envelope and interfaces.
- 02SelectMaterial grade, safety margin and block format.
- 03EngineerCNC geometry, inserts, coating and assembly.
- 04DeliverManufactured module with agreed inspection data.
- 01Operating depth
- 02Required net buoyancy
- 03Available envelope
- 04Mechanical interfaces
- 05Coating / environment
More payload. Lower energy demand. Stable working state underwater.
Let’s Engineer the Right Buoyancy System
Share the operating depth, required buoyancy, available geometry and interface constraints.