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Polyurethane Subsea Buoyancy Foam

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Polyurethane Flotation Foam

LAST-A-FOAM® R-3300 Buoyancy Foam Series

LAST-A-FOAM® R-3300 is a machinable, hydrostatic pressure-resistant foam that provides buoyancy underwater (to depths of 1,200 ft., uncoated or 2,400 ft. coated). Its closed-cell structure is engineered to resist penetration by water.  LAST-A-FOAM® R-3300 semi-submersible foam is optimal for shallow to mid-water subsea buoyancy systems, marine and underwater robotics applications.

This subsea polyurethane foam supports training operations for the International Space Station, providing buoyancy for assembly components in pools that simulate weightlessness. Due to its pressure resistance to many fluids and resins, it is also used in resin-transfer molding as a core material.

Advantages:

  • Easy to machine, coat, and paint
  • Provides buoyancy with depths to 1,200 ft uncoated or 2,400 ft. coated
  • Dimensionally stable
  • 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 adhesives

Applications:

  • Underwater buoyancy
  • Underwater robotics (ROV/AUV)
  • Semi-submersible craft
  • Pipeline flotation
  • Subsea mooring buoyancy
  • Buoyancy for assembly components in weightlessness simulation pools
  • Underwater pumps for offshore drilling rigs
  • Core material for resin-transfer molding

Sizing Chart

ProductsDensity (lbs/ft3)Height
(in.)
Width
(in.)
Length
(in.)
Tested Depth
(ft.) (uncoated)
Tested Depth
(ft.)(coated)
R-3312 12 10 24 100 300 600
R-3312 12 14 18 100 300 600
R-3315 15 10 24 100 700 1400
R-3315 15 14 18 100 700 1,400
R-3318 18 10 24 100 800 1,600
R-3318 18 14 18 100 800 1,600
R-3325 25 10 24 100 1,200 2,400
R-3325 25 14 18 100 1,200 2,400

Shown are maximum standard stock sizes based on density. Custom sizes are available. Cut sheets are available from .125 inches (3.175 mm) up to standard stock heights as listed above.

ProductsDensity (kg/m3)Height
(cm)
Width
(cm)
Length
(cm)
Tested Depth
(m) (uncoated)
Tested Depth(m)(coated)
R-3312 192 25 60 250 91 182
R-3312 192 35 45 250 91 182
R-3315 240 25 60 250 213 426
R-3315 240 35 45 250 213 426
R-3318 288 25 60 250 244 487
R-3318 288 35 45 250 244 487
R-3325 400 25 60 250 366 731
R-3325 400 35 45 250 366 731

Shown are maximum standard stock sizes based on density. Custom sizes are available. Cut sizes are available from 3.175 mm up to standard stock heights as listed above.