Choose from a variety of porous membrane technologies based on your specific needs

Porex offers a variety of porous membrane solutions that use controlled processes to ensure consistent and repeatable pore structures. This includes polytetrafluorethylene (PTFE) hydrophobic membranes, polyethersulfone (PES) membranes, and track-etched membranes (PET), which help to support filtration & separation, venting, and reflectivity applications across a variety of markets. The specific choice of a porous membrane depends on the desired properties, such as pore size, material compatibility, chemical resistance, and the intended application.

Sintered PTFE Membranes

To address some of the most demanding medical and industrial applications, our PTFE membranes are capable of filtering particles as small as 0.1 microns in environments up to 500°F. This waterproof membrane has extreme durability and provides superior chemical resistance to aggressive media and corrosive solvents that can impact device functioning and overall performance.

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PES Membranes

PES microporous membrane technology consists of a unique asymmetric pore structure that enables controlled rejection at the surface while promoting maximum throughput of the membrane. These hydrophilic membranes have high flow rates, good pH resistance, and low protein and drug binding characteristics, making this technology ideal for nanofiltration and ultrafiltration applications.

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Track-Etched Membranes

Track-etched membranes (TEM), which come from our sister company Oxyphen, feature a unique pore structure that offers the most precise control of pore size and pore density on the market. Due to their smooth surface, track-etched membranes are a perfect surface filter with reversible (backflush) and self-cleaning functionality for hydrophobic, oleophobic, and hydrophilic applications.