PTFE Membrane Filter Discs, Laminated, 1.0um, 25mm, Hydrophobic, Nonsterile, 100/Pk
GVS SKU: 1215503

Featuring a hydrophobic polytetrafluoroethylene (PTFE) membrane laminated to a polypropylene support, this 1.0um, 25mm disc delivers durable particulate capture in chemically aggressive samples. The PTFE fine powder resin is expanded into a three-dimensional, web-like structure that creates billions of microscopic pores, capturing particulate on the membrane surface while allowing air and gas to pass easily. Supplied nonsterile, 100 discs per pack, in a plain white, non-gridded format.

Key PTFE Membrane Characteristics

• Naturally hydrophobic: The inherent water-resistant nature of PTFE means the membrane will not absorb moisture from air or gases, making it ideal for venting, phase separations, and aerosol sampling.
• Broad chemical compatibility: Compatible with strong acids and most aggressive solvents such as alcohols, with a usable pH range of 1 to 13.
• Expanded PTFE structure: A three-dimensional web of microscopic pores collects particulate as small as 0.1 micron on the membrane surface while permitting easy air flow.
• Aqueous capability: Can be prewetted with methanol to filter aqueous solutions when needed.
• Consistent barrier: Provides a temperature and chemical compatible barrier to microbes and particulate matter with an optimal combination of air flow and water entry pressure.

Key Construction Characteristics

• Laminated support: PTFE laminated to a polypropylene support for improved durability and easy handling.
• Format: 25mm diameter disc, plain white, non-gridded.
• Membrane thickness: 130um.
• Autoclavable: Withstands autoclaving up to 130 degrees C (260 degrees F).
• Packaging: Nonsterile, 100 discs per pack.

This laminated PTFE membrane maintains a consistent mechanical structure across demanding solvent and venting applications, protecting sample integrity through reliable surface particulate retention. Its non-stick, hydrophobic surface ensures dependable performance where moisture exclusion and chemical resistance are critical.

Color

White

Construction

PTFE laminated to polypropylene support

Diameter

25mm

Grade

Laminated

Grid (Yes/No)

No

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Temperature (°C)

130

Membrane Color

White

Membrane Thickness (µm)

130

Pack Count

100

pH Range

1-13

Pore Size (µm)

1

Sterility

Nonsterile

Sterilization

Autoclavable up to 130 degrees C

Support Material

Polypropylene (PP)

Wettability

Hydrophobic

• Aggressive Solvent Filtration Clarifies strong acids, alcohols, and aggressive organic solvents thanks to the membrane's broad chemical compatibility.
• Air and Gas Venting Permits easy air flow while excluding moisture, making it suited to venting applications in laboratory and device designs.
• Phase Separations The hydrophobic, non-stick PTFE surface supports reliable separation of aqueous and non-aqueous phases.
• Aerosol Sampling Collects particulate on the membrane surface without absorbing moisture from air or gases.
• Particulate Removal Captures fine particulate as small as 0.1 micron on the membrane surface during sample preparation.
• Aqueous Filtration Filters aqueous solutions after prewetting with methanol for expanded versatility.