Chemical properties of PTFE

Update:18 Apr 2018
Summary:

Resistance to atmospheric aging: resistance to radiatio […]

Resistance to atmospheric aging: resistance to radiation and low permeability: long-term exposure to the atmosphere, the surface and properties remain unchanged.
Incombustible: The oxygen limiting index is below 90.
Acid and alkali resistance: insoluble in strong acids, strong bases, and organic solvents (including argentic acid, ie, fluorinated sulfonic acid).
Antioxidant: Resistant to strong oxidants.
Acidity: Neutral.
Expanded PTFE