Talk:Polyvinyl fluoride

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Nothing said about the use as a barrier membrane for Helium filled lighter than air ballons and airships, where the helium atom is so small that it is very difficult to keep inside the envelope! Tedlar is the material of choice for this use, nothing compares to it for this specific use. Amclaussen. — Preceding unsigned comment added by 192.100.180.19 (talk) 16:34, 15 February 2017 (UTC)