Hydrophobic Oleophobic PTFE Membrane with PET Support Layer and Microporous Structure for ePTFE Filter Membrane Filtration

Genflow® ePTFE Membrane – Hydrophobic & Oleophobic Microporous PTFE Filter Membrane

Genflow® ePTFE membrane is a microporous polytetrafluoroethylene filter membrane supported by a PET (polyester) carrier layer. It is naturally hydrophobic and oleophobic, forming a reliable barrier that keeps liquids out while letting air and gas pass through at high flow rates. With a total thickness of 170 ± 30.0 µm and three pore size options, it is a drop-in filter media for medical venting, IV infusion sets, transducer protectors, sample preparation and general gas filtration.

Chemical Composition

Performance Characteristics by Pore Size

Key Features

• Hydrophobic and oleophobic surface – repels both water-based and oil-based liquids
• High water breakthrough pressure, up to ≥ 3.5 bar on the 0.2 µm grade
• High transmembrane air flow, up to ≥ 2,500 ml/cm²/min at 0.1 bar on the 1.2 µm grade
• PET supported construction for dimensional stability during cutting, pleating and assembly
• Uniform 170 ± 30.0 µm thickness for consistent stack height and sealing
• Excellent chemical resistance to acids, bases and solvents; wide service temperature range
• Lot-to-lot consistency, produced in a controlled clean-room environment

Available Configurations

• Roll – continuous roll format for automated converting and pleating lines
• Pieces – cut discs, squares or custom shapes to your drawing
• Custom slitting, disc punching and OEM private-label packaging available on request

Typical Applications

• IV infusion set air vents and in-line vents
• Transducer protectors and pressure monitoring lines
• Bacterial vent filters and sterile air venting of medical devices
• HPLC and laboratory sample preparation, solvent and aerosol filtration
• Automotive, packaging and outdoor electronics pressure equalisation vents

Ordering and Support

Tell us your pore size, roll width or cut dimensions and estimated annual volume, and we will quote the matching grade. Test reports, biological compatibility data and additional undisclosed specifications are available on request.

Send your specification today – share your pore size and format requirement, and our engineering team will reply with the matching Genflow® ePTFE membrane grade, samples and price.