Does anyone happen to know if there are any coatings that can be used to improve the gas permeability of Tygon? I've been looking into CVD(chemical vapor deposition), PVD(physical vapor deposition) and related technologies. There are plastic beverage bottle manufacturers that are using...
bchoate: Thank you for the suggestions. PEX would be worth trying but we need 1/8" I.D. and I've only been able to find 1/4" I.D. minimum. Also, I found one reference that says PEX should not be exposed to sunlight which could be prohibitive.
We've also tried Fluran F-5500-A grade Tygon...
Thank you for the replies.
Stonecold: Great suggestion, but adding this would be cost prohibitive for this application
Moltenmetal/Monkeydog: Air dissolving into the water may be a factor, but I think we are losing more air elsewhere. I say this because we've submerged an inverted glass test...
we are experiencing what appears to be a slow air leak in the following setup:
low pressure sensor connected to a tygon tube via 1/8" hose barb; the tygon tube is submerged in a liquid; the hydrostatic pressure of the liquid compresses the air in the tube; the sensor measures the air pressure...
