That's the same as teflon too. When I worked for W. L. Gore and Assoc. Inc. they had the U of D (University of Delaware) do a composite breakdown study.
What they found was bothersome to say the least.
Teflon reverts back to a powder form over time and then continues to leech and absorb potassium out of the ground. This much needed potassium by plants and animals basically continues to disapear over time. Even when irradiated the results where the same.
Like plastic, the elements revert back to there original form (powder) but that seems to be where the process stops
.