Buoyancy Modules, Boatbuilding & Marine Coatings
From hull to seabed — flotation that never floods.
Closed-cell glass spheres cannot waterlog: syntactic buoyancy for vehicles and risers, lightweight putties and cores for boatbuilding, insulative anti-corrosion marine coatings.
Application scenarios
01
ROV/AUV & instrumentation buoyancy
Machinable syntactic foam blocks, net-buoyant at rated depth.
02
Boatbuilding cores & fairing compounds
Lightweight sandwich cores, easy-sand fairing putties, deck insulation.
03
Offshore wind & aquaculture
Buoyant cable floats, subsea protection covers, floating platform insulation.
04
Marine antifouling & anticorrosion
Barrier-pigment function inside epoxy and polyurethane systems.
Why switch — on both ledgers
Economic advantages
- Buoyancy per dollar beats cast foam + fiberglass shells
- Fairing putty sands faster — labor is the real cost in boat yards
- Local warehousing program shortens resupply to < 3 weeks
Functional advantages
- Zero water uptake — flotation cannot degrade
- Service depth to 11,500 m (system-dependent)
- Machines cleanly, bonds to epoxy/vinylester/PU
- Thermal insulation for splash-zone protection
Recommended grades
HS32
HGS-32 Universal
- True density
- 0.32 g/cc
- Crush strength
- 2,000 psi (14 MPa)
- D50
- 50 µm
- Size range
- 15–90 µm
Inquire about this gradeHS46
HGS-46 Cementing
- True density
- 0.46 g/cc
- Crush strength
- 10,000 psi (69 MPa)
- D50
- 40 µm
- Size range
- 10–80 µm
Inquire about this gradeHS50
HGS-50 Deepwater
- True density
- 0.50 g/cc
- Crush strength
- 16,000 psi (110 MPa)
- D50
- 35 µm
- Size range
- 10–75 µm
Inquire about this gradeWho buys for these scenarios
Typical customer segments and reference companies in marine & offshore.
Subsea buoyancy molders
- · DeepWater Buoyancy
- · CRP Subsea
- · Matrix Composites
- · Balmoral
- · Regional syntactic shops (NO/UK/SG/BR)
Boatbuilding & repair
- · Composite boat builders
- · Fairing compound brands
- · Marine putty formulators
Ocean tech OEMs
- · ROV/AUV makers
- · Ocean sensor & sonobuoy firms
- · Offshore wind service firms
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