Almost completely chemically resistant to acids, lyes, solvents and thinners with the exception of melting alkali metals (sodium, potassium), fluorine compounds, or if subjected to high pressure or high temperature.
The benefits of pure PTFE compared to other plastics are combined in the following points:
thermal stability from -200°C to +260°C, for a short-term even up to 315°C
good chemical and atmospheric resistance
very good sliding characteristics, low coefficient of friction
nothing sticks to it
good electrical insulation characteristics depending on the external conditions