R+F FilterElements

Roll Goods — Filter Fabrics

Specialty Filter Fabrics

High-performance filter fabrics for extreme conditions. PEEK, PVDF, PPS, PTFE, and Aramid — when standard polymers reach their limits.

Available as roll goods for self-fabrication, or fabricated to your machine specification as part of our RF-FF, RF-CF, and RF-ANF product series.

High-Performance Polymers

PEEK (Polyetheretherketone)

Highest temperature resistance
260 °C continuous pH 1–14

The ultimate high-performance filter polymer. Exceptional thermal stability, chemical inertness across the full pH range, and excellent mechanical strength at elevated temperatures. Resistant to steam sterilisation.

Typical applications: Aggressive chemical processes, high-temperature filtration, pharmaceutical, strong acid/alkali environments.

PVDF (Polyvinylidene Fluoride)

Best oxidation resistance
150 °C continuous pH 1–14

Excellent resistance to oxidising agents, halogens, and strong acids. Good mechanical strength and UV resistance. Lower cost alternative to PEEK for many aggressive chemical applications.

Typical applications: Chlorine-containing processes, oxidising acid filtration, semiconductor manufacturing, aggressive chemical waste.

PPS (Polyphenylene Sulfide)

Flame retardant, flue gas
190 °C continuous pH 1–14

Outstanding chemical resistance, including against chlorinated solvents and strong alkalis. Excellent dimensional stability at high temperatures. Inherently flame retardant.

Typical applications: Flue gas filtration (power plants, waste incineration), chemical processing at elevated temperatures, ATEX environments.

PTFE (Polytetrafluoroethylene)

Chemically inert, non-stick
260 °C continuous pH 0–14

Virtually inert to all chemicals. Extremely low friction surface for exceptional cake release. Non-stick properties reduce blinding. Available as monofilament yarns or membrane coatings.

Typical applications: Extreme chemical environments, fine particle membrane filtration, pharmaceutical, food processing with aggressive cleaning regimes.

Aramid (Nomex® / Kevlar®)

High temperature + strength
200 °C continuous (Nomex®), 180 °C (Kevlar®) pH 4–11

Exceptional thermal stability with outstanding mechanical strength. High cut and tear resistance. Nomex®: thermal applications. Kevlar®: mechanical strength. Inherently flame retardant.

Typical applications: High-temperature gas filtration, cement kilns, asphalt plants, steel mills, ATEX-rated dust collection.

Specialty Polymer Comparison

PropertyPEEKPVDFPPSPTFEAramid
Max Temp.260 °C150 °C190 °C260 °C200 °C
Acid ResistanceExcellentExcellentExcellentExcellentModerate
Alkali ResistanceExcellentGoodExcellentExcellentGood
Mechanical StrengthExcellentGoodGoodModerateExcellent
Flame RetardantYesYesInherentInherentInherent
Cost Level€€€€€€€€€€€€€€€€€

Related Products & Applications

Independent manufacturer — no affiliation with the named companies. R+F FilterElements GmbH is an independent manufacturer of filter fabrics and filter elements. All manufacturer, machine and brand names on this page are used solely to describe the compatibility of our products with existing equipment. We are not affiliated with, endorsed by, authorised by or a licensee of the named companies, and we do not supply original spare parts. All trademarks remain the property of their respective owners.

Extreme conditions? Let's find the right fabric.

Tell us your process conditions — temperature, chemicals, pressure — and we recommend the optimal specialty polymer. Samples available for all materials.

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