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Tetratex® microporous expanded PTFE membrane films are naturally hydrophobic and can be used as permeable water barriers for venting in gas sensors, acoustical applications, pressure venting , industrial battery venting, electronics and more. Oleophobic gas-permeable venting materials are also available to provide oil resistance but allow gases to vent through the membrane.
Our membranes are also available thermobonded to substrates such as polypropylene and polyester and can be treated to repel oils as well as water using our proprietary oleophobic treatment.
Sensor Contamination Control
Today’s sensors are often required to operate in environments detrimental to their reliability. Long-term exposure to airborne contamination such as particles, oil, water, salt water, hydrocarbons, water vapour and acid gases can lead to signal error, calibration drift and finally, sensor failure. Tetratex membranes provide the most cost-effective sensor contamination control solutions available.
General Breather & Venting Applications
The unique hydrophobic, oleophobic and high filtration efficiency properties of Tetratex have led to use in medical container venting, inkjet cartridge venting and general applications requiring simultaneous pressure equalization and liquid barrier properties.
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Applications
Industrial Batteries
Acoustic Protection - Outdoor Speaker Phones, Headsets,
Hands-Free microphones
Pressure Venting- Chemical Drums
Sensor Venting – Gas Odor/Oxygen
Sterile Tank Venting
Fermentation air applications
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Literature
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