Interesting. I have no experience on the subject, but I would have tended
to do it like you suggested, filling in a completely enclosed cavity
through a hole. It seems easier and cleaner than sawing out excess foam.

But now that I think about it, will the foam expand to the point where it
might split a seam? Will the foam expand to the point where it compresses
against itself, pushing out air, and dimminishing it's bouyancy?

I still say put foam into an enclosure through a hole, but figure out the
volume of the space your filling and use the right ammount of foam,
allowing for expansion. That should be optimum.

Bob Dimond


In article UL2Hc.40867$MB3.13685@attbi_s04, "Ed Kracl"
wrote:



Now, I have the water saturated foam dug out of the cavity and letting every
thing dry out before sealing it back up.

I would like to put the new plywood floor in place glass it in solid, then
drill the same pattern of holes, and pour in new foam. It seems to me that
the foam up expand up to the bottom of the floor and provide a solid floor.

A local vendor who sells the foam suggested leaving the top off the cavity,
filling it with the foam, cut the excess off, and then install the top. I
just don't think I would get a solid floor doing it this way.

Sorry for the long post, but I've never worked with 2 part foam before and
I'm curious if someone out there can share any experiences with me.

Thanks in advance