Expanding foam filler like "Great Stuff". You are correct.
Edit: Guess I was a little slow...Ken Mi has the process down as well!
Last edited by 1Nut; 04/03/16.
Nut
Experience hath shewn, that even under the best forms of government those entrusted with power have, in time, and by slow operations, perverted it into tyranny.
Thomas Jefferson
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