SUBTEC®

High-Performance, Low-Density Syntactic Buoyancy Materials

Our specialist high-performance Subtec® buoyancy materials with densities ranging from 385 – 650 kg/m3 are designed and qualified for use in seawater depths of down to 11,500 metres.

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/M3385415468480495544650
MAXIMUM OPERATING DEPTH MSW @ 4 oc2,0003,0004,0005,0006,0007,00011,500
MAXIMUM OPERATING PRESSURE PSI @ 4 oc2,9004,3565,8017,2528,70210,15216,698
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

Please get in touch to discuss your project requirements.

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