Posted by Don in Missouri [108.162.216.22] on Tuesday, February 09, 2016 at 16:47:25 :
In Reply to: expanding foam spray posted by Glen [108.162.215.89] on Tuesday, February 09, 2016 at 11:38:07 :
I know it is so tempting. That nozzle fits almost anywhere and it is so easy to press the button and let the foam fill up all the voids. I did it once in a moment of weakness. I regret it so much, I am ashamed to admit it ever happened. I knew better than to go hog wild. I must have thought a little here and there wouldn't hurt. I sprayed some behind some curved panels that were plenty strong to resist the expansion. They were also high and dry-or so I thought. In matter of years, paint began bubbling on the outside of both metal layers. I don't think it matters if the cells are closed or open, the foam held moisture against the steel and it rusted from the inside out.
I was an idiot.
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