Re: Spray foam inside cab roof?
they make different grades of it and some expand more than others ,as long as you use minimal expanding it would likely work. I would research whats in it as already mentioned and its affect on metal.
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1969 CHEVELLE SS
1972 C10 ALMOST DAILY DRIVER
1968 C10 RUSTBUCKET (MISSION IMPOSSIBLE)
1972 PONTIAC LEMANS CONVERTIBLE (WIFE'S CAR)
"My wife and I were happy for twenty years. Then we met." - Rodney Dangerfield
"The difference between genius and stupidity is that genius has its limits." - Einstein
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