Eccofloat®
Trelleborg manufactures a range of high performance, low density syntactic foams for deep sea buoyancy applications called Eccofloat®. These composite foams provide ultra-low densities by selecting only the highest specification hollow glass microspheres and combining them within a rigid, high strength resin system. The syntactic foam is typically cast into standard blocks.
Oceanographers also depend on syntactic foams to suspend instrumentation in deep ocean studies. For these applications, the syntactic foam is used in either block form or custom molded shapes for installation in manned and unmanned submersibles such as the legendary Alvin and Jason vehicles that were used to discover and explore the Titanic.
Oceanographers also depend on syntactic foams to suspend instrumentation in deep ocean studies. For these applications, the syntactic foam is used in either block form or custom molded shapes for installation in manned and unmanned submersibles such as the legendary Alvin and Jason vehicles that were used to discover and explore the Titanic.
Benefits
Used to prepare large buoyancy modules
Various grades
Block form or custom molded shapes available
Application
Hydroplanes
Remotely operated vehicles (ROV)
Rudders
Trim adjustment modules for submarines
Acoustic windows
Unmanned and manned vehicles
Sonar domes
The Making of the Deep Submergence Vehicle (DSV) Limiting Factor - A Documentary by Nick Verola
This film details the design and construction of the first commercially-certified submersible capable of repeated dives to the very bottom of the ocean -- Challenger Deep. The film takes you behind the scenes to understand the difficulties in designing and building it, and the international team that made it happen.
This video is courtesy of Triton Submarines, Caledon Oceanic and Verola Media
This video is courtesy of Triton Submarines, Caledon Oceanic and Verola Media
Eccofloat® TG
Eccofloat® TG range of syntactic foams are lightweight for building manned and remote operating vehicles. The foams have zero magnetic and sea water comparable acoustic signatures, making them ideally suited to applications which include mine neutralization systems, Sonar Domes and Acoustic Windows.
Eccofloat® EL
Eccofloat® EL range of epoxy syntactic foams have been the materials of choice for manufacturing manned and unmanned submersibles for years, with their range of densities and ability to withstand exposure to diesel fuels and hydraulic fluids.
Eccofloat® DG
Eccofloat® DG range of syntactic foams have been developed for less density critical applications. Eccofloat® DG has excellent mechanical properties for structural applications.
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Eccofloat® DS
Eccofloat® DS range of syntactic foams, combine lightweight glass Microballoons with multi-functional epoxy resin to produce ultra-high strength-to-weight materials for high-performance, deep sea applications including unmanned and manned submersibles.
Eccofloat® Syntactic Foam Typical Properties
Imperial Range
North America materials
Eccofloat® |
Service Depth (FSW) |
Density
(lbs/ft³) |
Service Pressure (psi) |
Imperial Block Size (Inches) |
TG24 |
6,560 |
24 |
3,000 |
6x12x24 |
TG26 | 9,843 | 26 | 4,444 | 6x12x24 |
TG28 | 11,811 | 28 | 5,846 | 6x12x24 |
TG30 | 16,430 | 30 | 7,307 | 6x12x24 |
TG32 | 19,716 | 32 | 8,768 | 6x12x24 |
TG34 | 22,900 | 34 | 10,164 | 6x12x24 |
TG39 | 38,000 | 39 | 16,872 | 6x12x24 |
EL30 | 6,750 | 30 | 3,000 | 6x12x24 |
EL34 | 20,000 | 34 | 9,000 | 6x12x24 |
EL36 | 24,000 | 36 | 11,000 | 6x12x24 |
DS35 | 26,700 | 35 | 11,888 | 4x12x18 |
DS39 | 38,000 | 39 | 16,872 | 4x12x18 |
Metric Range
Rest of the world (not available in North America)
Eccofloat® | Max Op Depth (MSW) |
Density (kg/m³) |
Max Op Pressure (bar) |
Upthrust per ltr, based on seawater density of 1,025 kg/m³ |
TG2000 |
2,000 |
385 |
200 |
0.64 |
TG3000 | 3,000 | 415 | 300 | 0.61 |
TG4000 | 4,000 | 468 | 400 | 0.56 |
TG5000 | 5,000 | 480 | 500 | 0.55 |
TG6000 | 6,000 | 512 | 600 | 0.51 |
TG7000 | 7,000 | 544 | 700 | 0.48 |
TG11500 | 11,500 | 660 | 1150 | 0.37 |
DG1000 | 1,000 | 390 | 100 | 0.64 |
DG2000 | 2,000 | 435 | 200 | 0.59 |
DG3000 | 3,000 | 490 | 300 | 0.54 |
DG5000 | 5,000 | 540 | 500 | 0.49 |
Metric Block Size 750 x 500 x 150 (mm) |