Chemical properties of PTFE
Atmospheric aging resistance: radiation resistance and low permeability: the long-term exposure to the atmosphere, the surface and the performance remains unchanged.
Non flammable: limited oxygen index below 90.
Acid alkali: insoluble in acid, alkali and organic solvents (including magic acid, namely fluoroantimonic acid).
Anti corrosion ability: strong oxidant.
Acidity and alkalinity: neutral.