Thermostat gasket leaking AGAIN!!!!

i used Permatex, just not that specific one i don't think. mine was a tube. it was Black and very thick.


so if i get the O-ring style do i still need this?
probably not.. but if you use that you won't need the o-ring style... the aviation sealer is more a shelac that brushes on, a very thin layer and it 100% will not leak..