Silicone Gas Permeability Rates of Silicone
Permeability through a 25 mil sheet in CC / cm2 / second with 1 Atmosphere of Pressure Differential
ASTM D1418 | ||||||
---|---|---|---|---|---|---|
Silastic | Air | Nitrogen | Oxygen | Hydrogen | Carbon Dioxide | Helium |
VMQ | 0.382 | 0.307 | 0.660 | 0.729 | 3.87 | 0.436 |
PVMQ | 0.272 | 0.231 | 0.492 | 0.551 | 2.59 | – |
FVMQ | 0.077 | 0.064 | 0.129 | 0.215 | 0.82 | 0.145 |