At 09:52 AM 11/12/2004, you wrote:
What about using that spray foam insulation
stuff, "Great Stuff"? Probably not cost effective for really large items,
though...
I'm sure better chemical mixtures are easy and probably cheap
in bulk (like the commercial systems), but the formulations they
sell for crack-filling aren't expansive enough or cheap enough.
I seem to remember Mr. Wizard doing it and getting 10x or 100x.
- John