Tisch
PES Membrane Filter, 1.2um, 47mm, Nonsterile, 200 Pk SKU: SF18036

Polyethersulfone (PES) Membrane Filters - SF18036

Precision-manufactured hydrophobic membrane with a verified 1.2 pore structure delivers consistent retention performance across demanding laboratory filtration workflows. Developed with critical workflows in mind, a uniform Polyethersulfone (PES) matrix maintains its rated 1.2 cutoff under the pressures and flow conditions encountered during routine laboratory filtration. In sum, controlled production conditions produce membranes with documented pore size distribution and thickness tolerances, supporting method reproducibility across multiple filter lots.

Material Specifications

• Non-sterile configuration is suited for analytical sample preparation, mobile phase filtration, and other workflows where pre-sterilization is not required.
• Naturally hydrophilic, PES membranes require no pre-wetting and offer broad compatibility with aqueous buffers, alcohols, and mild organic solvents.
• Maximum operating temperature of 60°C accommodates warm sample filtration and elevated-temperature processes that exceed the limits of standard devices.
• Polyethersulfone (PES) membranes deliver high flow rates with ultra-low protein binding, making them the preferred choice for biological sample filtration.
• Asymmetric membrane architecture concentrates the retentive layer at the surface while maintaining an open substructure for sustained high flow.

Microbial enumeration methods require complete retention at rated pore size and a growth-supporting surface. The membrane specifications above confirm both requirements for your culture-based workflows. Under these conditions, PES membranes maintain rated flow characteristics across a broader pressure range than many competing polymers, giving you faster processing without risking membrane failure. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

≥8.7 psi (water, 25°C)

Color

White

Diameter

47mm

Extractables

Low

Filtration Area

17.35cm²

Flow Rate

≥144 mL/min/cm²

Grid (Yes/No)

No

Material

Polyethersulfone (PES)

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

100-120um

Pack Count

200

pH Range

1-14pH

Pore Size (µm)

1.2

Sterility

Nonsterile

Sterilization

Autoclave, EtO, Gamma Irradiation

Weight

0.49

Wettability

Hydrophobic

• Enzyme Recovery - Ensures minimal yield loss during the filtration of dilute enzyme solutions due to its inherently low-binding surface.
• Tissue Culture Support - Acts as a porous growth support for 3D tissue culture inserts, allowing nutrient diffusion while anchoring the cells.
• Buffer Batching - Clarifies large batches of biological buffers in production, protecting downstream chromatography columns from fouling.
• Large Volume Processing - Filters liters of culture media in vacuum filter units, offering the fastest flow rates for routine lab preparations.
• Microarray Substrate - Provides a low-background surface for protein array printing, minimizing noise in high-throughput screening applications.
• Bioreactor Sampling - Integrated into sampling ports to allow fluid withdrawal from bioreactors without compromising the vessel environment.