Modified PTFE (TFM)

Modified PTFE (mPTFE), also known under former brand names like TFM®, is a chemically enhanced version of standard PTFE. Thanks to molecular modifications it delivers superior properties for demanding applications. 

Vanéflon offers a reliable alternative to discontinued brands like Dyneon/3M’s TFM®, supplying high-quality mPTFE products in a wide range of formats.

Key properties

  • High temperature resistance: -200 to 260°C
  • Food contact: FDA compliant – EU 10/2011
  • Reduced porosity
  • Very high elongation at break (higher than PTFE)
  • Improved creep resistance
  • Good electrical insulating properties
  • Best anti-adhesive properties
  • Excellent weldability

Get to know the specifications

Download our Modified PTFE (TFM) datasheet

Custom mPTFE solutions

At Vanéflon, we deliver precision-machined mPTFE parts and tailored semi-finished products designed for demanding applications. Our technical expertise and in-house machining capabilities ensure consistent quality, excellent chemical resistance and reliable performance in every component.

Product Range

Semi-finished

Rods, tubes, sheets, and near-net shapes.

Machined Parts

 Custom-made to client specifications.

Foto disc pfa
Valve components

Liners, seats, discs, chevron seals.

Sealing solutions

For static and dynamic use in harsh environments.

Need advice on modified PTFE?

Choosing the right material is crucial. Whether you’re replacing discontinued TFM grades or designing new components, Vanéflon’s technical team is ready to help.

Contact us

Why choose modified PTFE?

Compared to standard PTFE, modified PTFE offers distinct technical advantages:

  • Lower porosity: less permeation, ideal for sealing and chemical containment of gasesTeflon™ is the best known  brand name for PTFE. 
  • Higher elongation at break: improved flexibility and mechanical resilience
  • Smoother surface finish: enhanced cleanliness and sealing performance
  • Reduced cold flow: better dimensional stability under load
  • Superior fatigue resistance: longer life in dynamic applications
  • Weldable: supports advanced fabrication techniques
  • FDA & EU 10/2011 compliant: suitable for food and medical use

Excellent electrical insulation and thermal resistance up to 260°C

Where is modified PTFE used?

Modified PTFE is ideal for industries where precision, purity, and durability are critical:

About TFM® and current alternatives

TFM® was a commercial brand name for modified PTFE grades that are no longer available. Vanéflon offers equivalent high-performance mPTFE materials with the same or improved specifications.

Modified PTFE is also available with various compounds (glass, carbon, graphite,…) to enhance mechanical strength, wear resistance and stability.

FAQs about mPTFE

Why customers choose Vanéflon

High-quality products

Thanks to our extensive knowledge of high-performance plastics and the continuous monitoring by technical experts, we possess the necessary know-how from powder to final product.

Excellent service & support

We strive to have a one-on-one relationship with our customers. The Vanéflon team is always ready to answer all of your questions and to guide you in projects tailored to your company’s needs.

Cost efficiency

We analyse the needs of our customers to provide the most efficient solution possible.

Delivery reliability

We deliver as promised with flexible VMI systems to offer seamless support to the logistical processes of our customers.