Material Comparison
PES vs. PTFE vs. PVDF vs. Nylon Membranes
Membrane selection begins with fluid phase, wettability and chemical compatibility—not with pore size alone. Sterilization, extractables, protein binding and integrity testing can change the final choice.
PES is a common hydrophilic choice for aqueous bioprocess liquids; hydrophobic PTFE is widely used for gases and vents, while hydrophilic PTFE suits validated aggressive liquids; PVDF and Nylon can serve specific liquid duties after compatibility and extractables are reviewed.
PES
Naturally hydrophilic with low protein binding, commonly selected for aqueous pharmaceutical and biotech filtration. Verify oxidant exposure, pH, sterilization cycles and integrity-test limits.
PTFE
Offers broad chemical resistance. Hydrophobic grades suit gas and vent service; hydrophilic grades support liquid filtration without pre-wetting when the exact chemistry has been verified.
PVDF
Available in hydrophobic and hydrophilic forms and can provide a useful balance of chemical resistance and low binding. Confirm solvent, temperature and sterilization compatibility for the selected grade.
Nylon
Naturally hydrophilic and useful for many aqueous and solvent applications, but it may bind more protein and is not universally compatible with strong acids or oxidants.
Information to send an engineer
Suggested citation
JINLV Filtration. PES vs. PTFE vs. PVDF vs. Nylon Membranes. https://jinlvrfilter.com/resources/pes-ptfe-pvdf-nylon-membrane-comparison
Verify product-specific data and documents: Product catalogs · Quality and acceptance requirements