FEPM, Aflas® O-Rings & Seals

The FEPM designation was originally directed at copolymers of tetrafluoroethylene (TFE) and propylene (P). TFE/P provides a unique combination of chemical, heat, and electrical resistance. Chemically, TFE/P resists both acids and bases, as well as steam, amine-based corrosion inhibitors, hydraulic fluids, alcohol, and petroleum fluids. TFE/P is also resistant to ozone and weather. TFE/P typically retains its remarkable chemical resistance even in high temperatures (short exposures up to 450 °F, 232 °C), and tests have shown that electrical resistance actually improves with heat exposure. Nor do physical properties suffer; tensile strength typically approaches 17 MPa.

NewDealSeals supplies Aflas® O-rings & FEPM seals in any dimension. Do you need sealing expertise and service around your applications? Call +31(0)226362233 or mail us info@newdealseals.com.

General properties FEPM

Temperature range:
Relative cost
Common names:
Colours available:

-20 to +204 °C
30 / 40 / 50 / 60 / 70 / 80 / 90

AFLAS®  Asahi Glass Co., Ltd
Black. Other colors on request.

FEPM performs well in

  • Acids & bases
  • Amines
  • Brake fluids
  • Petroleum fluids
  • Steam

    FEPM does not perform well in

    • Aromatic fuels
    • Ethers
    • Ketones
    • Toluene

      Typical FEPM Applications

      1. Oil field applications
      2. Chemical processing
      3. Cooling systems

        Certifications & compliances

        Newdealseals offers a wide range of products & materials that are certified and/or in compliance with industry specific standards. Examples of certifications and compliances:

        FDA CFR 21.177.2600 (A-D) Dry foods
        FDA CFR 21.177.2600 (A-F) Fatty foods
        EC 1935/2004 compliance
        EC 2023/2006 compliance
        BFR Class XV

        USP class VI
        ISO 10993
        NSF 61 section 6

        Oil & Gas
        Norsok M710

        Drinking water


        Gas appliances
        DIN EN 549

        Alternatives for FEPM, Aflas® O-Rings & Seals

        Do you want improved low temperature properties?

        VMQ, Silicone O-Rings

        Temperature range (-54 to 232 °C). Very suitable for mineral oils. Good flexibility, low compression set, ozone and UV-resistant.

        VMQ, Silicone 

        Do you want better overal chemical resistance & higher temperature resistance?

        FFKM, Fluorezi® O-Rings

        Temperature range (-30 to 325 °C). Superior chemical resistance to meet the most critical requirements.

        FFKM, Fluorezi® 



        We believe in the quality of our products and service. Fill out the form on the right-hand side and we will contact you shortly. Or you can use our product request form here.

        NewDealSeals B.V.

        +31 (0) 226 362 233


        Boezemschop 8, Breekland, 1724 BJ Oudkarspel, The Netherlands