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Polyurethane Flotation Foam

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Polyurethane Flotation Foam

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

LAST-A-FOAM® R-3300 is a machinable, hydrostatic pressure-resistant flotation foam that provides buoyancy underwater (to depths of 1,200 ft., uncoated), offering outstanding resistance to penetration by water. Due to its hydrostatic pressure-resistance to many fluids and resins, it is also used in resin-transfer molding as a core material. LAST-A-FOAM® R-3300 submersible foam is optimal for shallow to mid-depth underwater robotics applications.

This high-density urethane supports training operations for the International Space Station, providing flotation for assembly components in pools that simulate weightlessness.

AdvantagesApplications
  • Easy to machine and paint
  • Depths to 1,200 ft.
  • Resistant to hydrostatic pressure
  • Dimensionally stable
  • Inert
  • Will perform in freshwater or saltwater
  • Underwater flotation
  • Core material for resin-transfer molding
  • Underwater robotics for nuclear reactors
  • Underwater pumps for offshore drilling rigs
  • Subsea surveillance robotics
  • Semi-deep submersible crafts
  • Flotation for assembly composites in weightlessness simulation pools

Sizing Chart

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

Shown are maximum standard stock sizes based on density. Custom sizes are available. Cut sizes 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)
Max Depth
(m) (uncoated)
R-3312 240 25 60 250 91
R-3312 240 35 45 250 91
R-3315 240 25 60 250 213
R-3315 240 35 45 250 213
R-3318 288 25 60 250 244
R-3318 288 35 45 250 244
R-3325 240 25 60 250 366
R-3325 240 35 45 250 366

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.