So how did the water get under there in the first place? If they foamed the strakes like they did, there's obviously no way the water could drain. Was the deck not sealed and allowed water to get under the deck, causing it to stay in the foam?
I used the 2 part expanding foam on mine almost exactly the way shown in the pix, but I've also taken great care to make sure the only way to get water/moisture UNDER the deck is a hole in the bottom of the hull. If that happens, I've got bigger issues than the foam taking on water:crazy: The foam is basically filling a watertight space between the hull and bottom of the deck.
I'm not disputing what you're saying about the foam taking on some water, with the application of sufficient pressure over time it makes sense that the closed cells would begin to break down and allow the foam to become more porous. I am saying it sounds to me like the issue isn't with the foam, it's with the application that it was used on, or with a failure (like a hole or leak that let water into what was supposed to be a watertight area) of some other component or system.
The foam is meant to augment the structural stiffness of the boat, provide a margin of safety in case of a hole in what should be a water tight area, or to provide additional bouyancy in case of swamping. It's not meant to compensate for bad design or long-term mitigation of structural defects.
Just my $.02, but I'll take my chances because the benefits of the foam to my application is well worth it's limitations.
I do appreciate the head's up, though, if I hadn't sealed the voids where the foam is you can bet I'd be doing it now after seeing your pix. Thanks!
Branden