Posted 06-26-2002 at 09:47:17
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I shoulda known - years ago we were trying to cast foam insulating panels for aircraft galleys, and we milled out a mold about 3 feet square, drilled relief holes in the backside, mixed, poured the foam and clamped it together at the end of the shift. Next morning the thing looked like it had loaves of bread (foam really) sticking out the relief holes! That foam had literally warped both plates, probly minimum 5/8" thick aluminum, beyond repair.
So i'm inventing yesterday right? I've introduced squirt foam into an old length of garden hose and it's having trouble working down to the other end, so i clamped the messy end off, thinking it will find a way. It did! This morning the hose had several nice loaves of foam wherever it chose to tear the hose! Never did get to the other end, 3 feet away! I'm thinking the army could use this to implode caves or build towers or runways or inflate tires or interrupt long-winded speakers or some silly thing.... Where's my drawing board? heh heh
Oh, and foam is NOT waterproof, no matter what the books claim! That stuff soaks water like a sponge. We tried to fix some cavities in a foam surfboard, and a few weeks later the patches were waterlogged. So be careful with that wonderful stuff! It can't replace duct tape yet!