Modified PTFE, also known as TFM® from Dyneon®, offers all the advantages of this outstanding fluoroplastic, just like “standard PTFE.” However, by modifying the molecular structure, the following properties have been further improved:
- Improved deformation under load (approx. 50%)
This property is important for all design applications in which the component is subjected to continuous stress, particularly when heat is involved. For example, bellows and membranes are often made from Enduflon M to ensure that the clamping areas do not “flow away”—and thus develop leaks—even at higher temperatures. - Reduced Diffusion / Permeation (approx. 50%)
Whenever highly volatile or chemically aggressive substances are handled, it is crucial that they do not diffuse into the components containing them (containers or pipes). This is primarily the case in process engineering, analytical chemistry, and food technology. In these applications, it is crucial that critical substances are not stored in order to prevent subsequent contamination. Modified PTFE can help reduce these effects. - Smoother Surface
Because the primary grains fuse together more effectively during the sintering process, a more homogeneous microstructure is created. This, in turn, results in less surface tearing during machining, leading to a uniform surface texture. As a result, for example, in applications involving food contact, bacteria are less likely to adhere, and cleaning processes are made even easier.
Due to the closure of the Dyneon plants, the well-established brand portfolio of TFM® modified PTFE grades will disappear from the market. Our alternative material, Enduflon® M4b, has virtually the same properties and is therefore a fully equivalent replacement. Purity, physiological safety, fatigue resistance, chemical and thermal resistance, and all other characteristics remain unaffected. Approvals and certifications in accordance with FDA, EU Regulation 1935/2004, EU Regulation 10/2011, MOCA, USP Class VI, etc., are available.
