The hydrophobic properties of the PTFE membrane cartridge provide a solution to sterile chemical, air, gas and vent filtration applications. The PTFE media and polypropylene support components present a broad chemical compatibility with the PTFE cartridge also suitable for applications where other membrane media degrade due to incompatibility.

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Frequently asked questions

PTFE (Polytetrafluoroethylene) is used where extreme chemical resistance and high temperature tolerance are required — applications involving aggressive solvents, strong acids or bases, or hot process fluids that would degrade polypropylene, nylon, or glass fibre media.

PTFE handles a far broader range of chemicals and higher temperatures than polypropylene, making it the choice for aggressive chemical processing rather than general water filtration — polypropylene remains the more cost-effective, general-purpose option for standard water treatment.

PTFE membrane is naturally hydrophobic, which makes it particularly suited to venting and gas filtration applications as well as aggressive liquid filtration — check the specific product listing for whether a given PPPTFE cartridge is treated for hydrophilic (water-wetting) use if you need it for aqueous filtration.

The range covers a range of fine micron ratings suited to precision chemical and process filtration — check the specific product listing for the exact rating you need, since PTFE cartridges are typically specified for narrower, more demanding applications than general sediment filters.

PTFE's temperature resistance is one of its key advantages over other pleated media, but always check the specific product's rated maximum temperature before exposing it to steam or high-temperature sterilisation cycles, since ratings vary across the range.