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If you have a alluminum cylinder such as whats used on a pontoon boat. and they have only air in pontoons, will filling the pontoon with foam increase the buoyancy.
- Harvey Hawkins (age 57)
No, the foam will be a little more dense than pure air, so it will
reduce the buoyancy. I can imagine other reasons for using foam. For
example, if the pontoon were punctured, foam would greatly slow down
the air leakage, so you'd avoid an immediate catastrophe.
(republished on 07/31/06)
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