LAST-A-FOAM® R-3300 is a hydrostatic-pressure resistant foam formulation with outstanding (up to 350 psi) resistance to penetration by water and other liquids. It is available in densities of 15 and 18 lbs/cubic foot. It is capable of providing permanent flotation in semi-deep submersible craft, and in other, similar applications.
LAST-A-FOAM® R-3300 has been used in support of training operations for the International Space Station, where it provides flotation for assembly components in weightlessness-simulation pools.
For more information please see the R-3300 Material Safety Data Sheet (MSDS) and Technical Data Sheet (TDS).