Will Styrofoam take on water ? I refer to those ubiquitous small "peanuts"
used in packing and shipping ; I want to add some permanent floatation to a
beat up old fiberglass dingy : I've one seat compartment opened now (I've
given up on sealing all the holes, now or future ) and it occurs to me that
filling the interior of the seat with these things would be useful if they
didn't waterlog.