Comprising high-grade hollow glass microspheres (HGMS) and a novel thermoset polymer matrix, our Subtec® buoyancy materials are formulated to produce ultra-high strength-to-weight characteristics with excellent water ingress resistance. This makes them the ideal solution for subsea applications including crewed and uncrewed vehicles.
Subtec® buoyancy materials are cast into standard block sizes 750 mm x 500 mm x 150 mm, ready for use. Each grade is colour coded to ensure depth ratings match within buoyancy assemblies.
Finished Subtec® buoyancy modules are manufactured to exact customer specifications and drawings, with the option for the addition of a polyurethane (PU) protective coating for impact and abrasion resistance, aesthetic paint finishes and custom markings.
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APPLICATIONS
Subtec® buoyancy materials can be used for the following applications:
- Remotely operated vehicles (ROV)
- Autonomous underwater vehicles (AUV)
- Human-operated vehicles (HOV)
- Trenching vehicles
- Oceanographic exploration
- Ancillary equipment
FEATURES & BENEFITS
- Low density
- Low water absorption
- High hydrostatic crush pressure (HCP)
- High bulk modulus
- Suitable for multi-cyclical operation
- Excellent chemical and hydrolysis resistance
- Low dielectric loss
TECHNICAL PROPERTIES
| Properties | 2000 | 3000 | 4000 | 5000 | 6000 | 7000 | 11500 |
|---|---|---|---|---|---|---|---|
| Colour | WHITE | PINK | VIOLET | ORANGE | BLUE | YELLOW | GREEN |
| NOMINAL DENSITY KG/M3 | 400 | 415 | 468 | 480 | 495 | 544 | 650 |
| MAXIMUM OPERATING DEPTH MSW @ 4 oc | 2,000 | 3,000 | 4,000 | 5,000 | 6,000 | 7,000 | 11,500 |
| MAXIMUM OPERATING PRESSURE PSI @ 4 oc | 2,900 | 4,356 | 5,801 | 7,252 | 8,702 | 10,152 | 16,698 |
| HYDROSTATIC CRUSH PRESSURE PSI @ 4 oc | >4,900 | >5,445 | >7,350 | >10,000 | >12,000 | >12,500 | >20,000 |
| WATER ABSORPTION % @ 4 oc | <+2 | <+2 | <+2 | <+2 | <+2 | <+2 | <+2 |