Aflas® O-Rings

Aflas® O-rings are high-performance sealing solutions made from a copolymer of tetrafluoroethylene (TFE, FEPM) and propylene, containing approximately 54% fluorine. Also referred to as TFE/P rubber, Aflas® seals are engineered to prevent fluid and gas leaks, ensuring long-term performance, durability, and chemical resistance in harsh industrial environments.

Key Advantages and Properties of Aflas® O-Rings

Aflas® O-rings are engineered elastomeric compounds designed to withstand extreme operating conditions. Thanks to their advanced polymer structure, they perform exceptionally in environments involving high pressures, aggressive chemicals, and extreme temperatures.

Chemical Resistance

TFE/P rubber O-rings offer outstanding resistance to chemical degradation caused by harsh industrial substances. The unique combination of fluorinated and hydrocarbon segments in the polymer chain allows them to withstand exposure to a wide range of chemicals. These include:

• Brake fluids

• Crude oil

• Synthetic and vegetable oils

• Transmission fluids

• Acids and alkalis

This broad compatibility makes Aflas® a preferred choice for sealing components in chemically aggressive applications.

High Temperature Tolerance

One of the standout features of Aflas® O-rings is their excellent thermal resistance. They operate reliably in a wide temperature range from –25°C to +230°C. The presence of fluorine atoms in the polymer structure enhances their ability to withstand heat, making them ideal for high-temperature sealing applications across many sectors.

Aging and Oxidation Resistance

Aflas® O-rings are inherently resistant to oxidative degradation, allowing them to maintain sealing integrity and mechanical properties over long-term use. This resistance to aging translates into extended product life and reduced maintenance.

Electrical Insulation

These O-rings also provide excellent electrical insulation, making them suitable for sealing applications in environments where resistance to electrical current is crucial.

Steam and Amine Resistance

TFE/P rubber demonstrates resistance to amine-based corrosion inhibitors and steam corrosion, allowing it to be used effectively in high-pressure steam systems and refinery processes involving hot steam exposure.

In addition, Aflas® seals are:

• Resistant to ozone and UV exposure

• Compatible with vacuum applications

• Gas impermeable and pressure-retentive

• Low in compression set

Common Applications of Aflas® O-Rings

Thanks to their chemical, thermal, and steam resistance, Aflas® O-rings are widely used in high-demand industrial environments. Their excellent sealing performance makes them suitable for:

• Chemical processing – pump seals, agitators, valves

• Automotive industry – fuel injector seals, turbocharger hoses

• Oil and gas industry – drilling tools, valves, high-pressure systems

• Power generation – steam and hot water installations

• Pharmaceutical industry – fluid transfer and CIP systems

• Mining and drilling – high-stress environmental applications

• Food processing – aggressive cleaning and steam contact environments

Aflas® O-Rings from Power Rubber: Industrial-Grade Steam and Chemical Resistance

Power Rubber offers Aflas® O-rings (TFE/P) designed for superior chemical resistance and thermal stability. Our products are manufactured to withstand exposure to:

• Motor oils

• Phosphate esters

• Amines

• Steam and hot water

• Acids and alkalis

• H₂S (hydrogen sulfide) gas and radiation

Thanks to their broad compatibility, TFE/P O-rings are an excellent alternative to traditional FKM (Viton®) seals. They provide enhanced resistance in environments where strong bases, steam, and amines are present.

Got Questions? We’re Here to Help

Power Rubber offers reliable sealing solutions tailored to the specific needs of various sectors. Our Aflas® O-rings are available in a range of metric and imperial sizes, as well as in different hardness grades (ShA).

We ensure fast lead times and efficient order processing — typically within just a few days.

Get in touch with our team to learn more about our technical rubber solutions or place an order:

Phone: +48 22 292 40 24 or +48 505 16 03 03
Email: Power@PowerRubber.com
Contact form: Available on our website