That darn FOAM

[reelapeelin]

Originally Posted by tsubaki

You'd be surprised just how little that (the correct) foam does absorb, the average boat may be around 5 gallons.
The wrong foam will be as bad as a sponge. Can't remember which was which.
The usual problem is water trapped between the foam and it's way to drain.

Open-Cell foam IS like a sponge...millions of tiny air-pockets soak up and hold water...on the other hand...

Closed-Cell foam has no air-pockets and is more resistant to soaking up water...but water, over time will eventually find its way thru about anything...including gel-coat and into the tiniest of places in Closed Cell...it's just a matter of exposure to water over time...