LabExact
PTFE Hydrophobic Membrane Filters, 0.22µm, 90mm, Nonsterile, PP Scrim Support, 100/Pk SKU: LE-IWT-PTFE-022090

Featuring hydrophobic polytetrafluoroethylene (PTFE) membrane technology with polypropylene (PP) scrim reinforcement delivering exceptional chemical resistance for aggressive solvent and phase separation applications. PTFE membranes are extremely hydrophobic and offer exceptional chemical compatibility, making them ideal for organic solvent filtration, gas venting, and analytical sample preparation. The 0.22µm pore structure provides reliable particulate retention while maintaining superior flow characteristics through 260°C maximum operating temperature performance.

Key PTFE Membrane Characteristics

• Hydrophobic surface chemistry repels aqueous solutions while allowing organic solvents and low surface tension fluids to pass freely
• Exceptional chemical compatibility with acids, bases, and aggressive solvents ensures reliable performance in demanding analytical protocols
• High porosity microstructure delivers superior flow rates while maintaining precise 0.22µm particle retention efficiency
• Thermal stability through 260°C continuous operation enables high-temperature filtration and sterilization applications
• Biologically and chemically inert construction eliminates contamination risk in critical analytical and pharmaceutical processes

Key Construction Characteristics

• Polypropylene scrim support bonded without adhesive agents maintains membrane purity and reduces extractables for analytical applications
• 90mm diameter accommodates standard filter holders and provides 63.6 cm² effective filtration area for high-volume processing
• Nonsterile configuration optimized for laboratory filtration where sterility validation is not required
• White membrane appearance with separator paper interleaving ensures easy handling and prevents membrane damage during storage
• 100-piece packaging delivers convenient quantities for routine laboratory operations and quality control testing

These PTFE membrane filters excel in venting, gas filtration, and solvent filtration applications where liquid repellency, high purity, and chemical resistance are critical. Low surface tension fluids, such as alcohols, can spontaneously enter and fill the pores, and once wetted, water can easily pass through after prewetting with methanol. Superior chemical resistance combined with reliable 0.22µm retention makes these filters essential for HPLC sample preparation, organic extraction, and phase separation protocols demanding both chemical compatibility and analytical precision.

Diameter

90mm

Material

Polytetrafluoroethylene (PTFE)

MFS/Advantec Equivalent

T020A090C

Millipore Equivalent

FGLP09050

Pack Count

100

Pore Size (µm)

0.22

Sartorius Equivalent

11807--90------G

Sterility

Nonsterile

Weight

0.562

Wetability

Hydrophobic