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Re: water diffusion into PET
Posted by Ritesh Dewan on March 23, 2005 at 15:24:49:
In Reply to: water diffusion into PET posted by claudio raggi on November 04, 2004 at 13:51:54:
I have found the diffusion coefficient of water in Polyethylene Terephthalate (PET) is approx 5.67*10 -9 cm2/sec for the 20 micron unocated PET films.