Fel Pro thermostat gaskets?

Quick question these don't require sealant, correct?
I would put a thin coat of Permatex on them.

Hello Coalman,
I Just as Sireland67 stated I also apply a very small amount of Permatex "Ultra Gray" (my choice) by wiping both sides of the gasket with my finger to just have a skim coat on it. Really helps if you have to remove the gasket in the future it will come off with little or no effort.
Stay safe...
Happy Mopar :)
Arron.