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Old May 15th, 2011, 23:04   #2
kullwarrior
 
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Join Date: Jan 2008
Location: Edmonton, AB, Canada
from what I learned in the past, Difluoro will eat O-ring while Tetra doesnt...just a note.
As for gas vaporization, I find Propylene>Propane>Tetra>Difluoro
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