SEM Rust shield/POR15/Chassis saver/EastWood Rust encapsulater

I had to replace a 4" X 8" section of the floor in my Dart because a cat used it for a litter box for a number of years. (no glass in the car for a long time) there is some other areas where there is mild pitting. I did neutralize the bad areas before doing any work.
I'm trying to decide what to paint the floor pan to protect from more corrosion/rust.
Appreciate all opinions!!!