Polytetrafluoroethylene more commonly known as PTFE or "teflon" (a brand name known to the general public - by DuPont - used in pan linings and plumbing sealing tape) is a fluoropolymer. We classify this material with such singular characteristics as mineral fibres (based on fluorine).
Its low coefficient of friction (self-lubricating), its outstanding chemical resistance, its high thermal resistance, as well as its oleophobic and hydrophobic properties make it a unique and really special material.
In fibres, it allows the manufacture of the most special fabrics in technical textiles. PTFE is extremely stable to various chemicals and is nearly insensitive to the most common acids, bases, solvents and gases, including concentrated and hot gases. Only products with a high fluorine concentration can affect it. In addition to being chemically inert, it is insensitive to UV light and non-combustible (M0).
Electrically speaking, its high dielectric constants make it a perfect insulator for high-risk applications.
On the other hand, PTFE fibres have a relatively low mechanical strength. However, PTFE has the best life time and resistance to the elements.
The "+": PTFE-based textiles generate a "cold effect". Actually, in contact with such a fabric, you feel a strong cooling effect.
Technical data of PTFE
temperature of degradation : 400°C
maximum operating temperature advised : 250°C
density : 2.15g/cm3
colour: white (dope dyed is possible under certain conditions)
LOI : 95
Friction coefficient : 0.05 à 0.2
high durability
highly resistant to extreme chemical conditions