PTFE properties
The non-sintered PTFE products are made of 100% pure, virgin PTFE (polytetrafluoroethylene).

Heat resistance
PTFE is non-inflammable and can be used at temperatures ranging between –200°C and +250°C. This demonstrates the material's high resistance to temperatures. At +250°C no significant decompositions are recorded, so the material maintains a good part of its characteristics, while perceptible decompositions are recorded at temperatures of over 400°C

Chemical resistance
PTFE is resistant to the most aggressive acids and gases. It is practically inert toward compounds and elements with a PH level ranging between 0 and 14. It can only be attacked by alkaline metals, such as sodium and potassium for example, in the molten state and fluorine in the gaseous state. Acids, alkalis and solvents of all types do not corrode PTFE. The fluorinated hydrocarbons cause a certain swelling, which is, however, reversible; some highly fluorinated oils used at temperatures above 300°C exert a certain solvent action.

Resistance to vacuum
PTFE guarantees no leakages of gas and no depolymerization.

Resistance to ageing
PTFE is not subject to ageing or deterioration in time, however it is used. PTFE has exceptional resistance to ultraviolet rays which has been proved after more than 50 years exposure to the sun in Florida.

Non-toxicity
When taken to a high temperature, PTFE is odourless and tasteless. The material is not toxic and does not contaminate, furthermore it does not contain substances that can be extracted and remains unaltered by micro-organisms.

Excellent insulating material
Even if the transmission coefficient is not amongst the most dense in the family of plastics, PTFE is also used for this type of application, because the coefficient of thermal conductivity does not vary as the temperature varies. Furthermore, it is the only plastic that can be used at a running temperature of 250°C. It has exceptional electric and dielectric properties and has a very limited coefficient of friction both static and dynamic.

Fields of use
Owing to its very high chemical and thermal resistance, as well as its great plasticity, PTFE is recommended for seals, rings, glands, balls for valves, expansion joints for pipes, protective and insulating coatings, bushes, piston rings and gaskets.