LAST-A-FOAM® R-3312 and R-3318 are machinable, hydrostatic pressure-resistant foams that provide buoyancy underwater. Their closed-cell structure is engineered to resist penetration by water. Due to their pressure resistance to many fluids and resins, they are also used in resin-transfer molding as a core material. LAST-A-FOAM® R-3312 and R-3318 semi-submersible foams are optimal for shallow to mid-water underwater robotics applications.
These subsea polyurethane foams support training operations for the International Space Station, providing buoyancy for assembly components in pools that simulate weightlessness.
Note, the 1.9 x 3.4 x 4.8 in block is used on the BlueROV2 to provide buoyancy.
Features
- Easy to machine, coat, and paint
- Provides buoyancy with depths to 300 ft uncoated or 600 ft coated
- Excellent compressive and insulation properties
- Resistant to hydrostatic pressure
- High impact resistance
- Biologically Inert
- Oil, grease, and solvent resistant
- Cost-effective solution
- Does not rot or decay
- Performs in freshwater or saltwater
- Compatible with many types of adhesive
Resources
Specifications
| Parameter | ||
|---|---|---|
| R-3312: Density | 12 lbs/ft3 | 192 kg/m3 |
| R-3318: Density | 18 lbs/ft3 | 288 kg/m3 |
| R-3312: Specific Gravity | 0.19 | |
| R-3318: Specific Gravity | 0.29 | |
| R-3312: Tested Depth (uncoated) | 300 ft | 91 m |
| R-3318: Tested Depth (uncoated) | 800 ft | 244 m |
| R-3312: Tested Depth (coated) | 600 ft | 182 m |
| R-3318: Tested Depth (coated) | 1600 ft | 488 m |
| Sizes Available | (1) 8 x 4 x 0.5 in (2) 12 x 6 x 1 in (3) 16 x 8 x 1 in (4) 24 x 8 x 2.5 in (5) 1.9 x 3.4 x 4.8 in |
203 x 102 x 13 mm 305 x 152 x 25 mm 406 x 203 x 25 mm 610 x 203 x 64 mm 124 x 86 x 48 mm |
| Buoyancy (Lifting force) | (1) 0.5 lb (2) 2.1 lb (3) 3.7 lb (4) 14.0 lb (5) 1.1 lb |
210 g 950 g 1690 g 6330 g 512 g |
| Weight (in air) | (1) 0.11 lb (2) 0.53 lb (3) 0.96 lb (4) 3.73 lb (5) 0.34 lb |
52 g 238 g 434 g 1694 g 156 g |
Weight
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Dimensions
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