Hydrophobic PTFE Membrane

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Cobetter Hydrophobic ePTFE membrane is made from pure Polytetrafluoroethylene (PTFE), combined with long duration aqueous repellent capability and optimized porous structure. The hydrophobic nature of PTFE promises its long-lasting unwetted status even be kept contacting with water or other normal liquids, and the open porous structure provides a wide range of pore size, 0.02μm to 10μm, ensuring the retention of bacteria, virus, and particles is always effective while maintaining the excellent gas permeability. 


The combinatin of water resistance, air permeability, and particle retention introduces ePTFE into various medical applications involving long-lasting liquid resistance and gas venting / gas filtration, based on which Cobetter ePTFE membrane is compatible with multiple sealing methods, ultrasonic, heat, RF welding, mechanical, and inserting molding, offering our customers more possibilities of sealing solutions, given the quality is as marvelous as promised.



Certified Biological Safety (ISO 10993/USP Class VI)

Excellent Air Permeability, Outstanding Air Flow Rates

Optimized Backing Material,Better Sealing Capability

Wide Range of Pore Size (0.02-10μm)

High Water Entry Pressure (WEP)

HEPA/ULPA/STERILE Grade

Compatible with Different Sealing Methods

Ultrasonic, Heat, RF Welding, Mechanical, Inserting Molding

Serilization Compatibility

Autoclave,Ethylene Oxide, E-Beam, Gamma Irradiation



Available Pore Sizes (μm)

0.02 /  0.03 /  0.05 /  0.1 /  0.2 /  0.45 /  0.8 /  1.0 /  2.0 /  5.0 /  10.0

Typical Performance Characteristics (*0.2μm)

Filtration Efficiency ≥99.99999% Brevundimonas diminuta
Air Flow Rates Gurley 17-49sec
WEP(60s) >450 KPa
Thickness 280-440μm (Supported)


Typical Applications

- IV Filter Vent
- Transducer Protector (TP)
- Bacterial Air Vent
- Sensor Protection Cover
- Package Vents
- Drip Chamber Spike Vent
- Dispensing Pin
- Urine Meters/Bags
- Ostomy Pouches
- Insufflation Filters


Support Type

Polyester, Polypropylene, Un-supported

Membrane Formats

Roll, Sheet, Disc, Adhesive Backing, Customization


   


For technical data sheet or application inquiry, you are more than welcome to contact our sales representative by sales@cobetterfilter.com or leave a message




  • Hydrophobic ePTFE Membrane Cobetter Hydrophobic PTFE membrane is made from pure PTFE membrane bonded to a polypropylene support. The extreme chemical compatibility (pH 1-14) makes them very useful for the filtration of solvents and acids or other aggressive chemicals, for which other membrane filter types are unsuitable. Due to their hydrophobic characteristics, they must be pre-wet with a solvent such as ethanol or methanol before the filtration of aqueous solutions.
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