[MP&C]

For filler, you can't go wrong with Evercoat products. When mixed, you've already seen the heat generated from the chemical reaction. If applied to bare steel, this heat against the colder metal will create condensation. If you were to sand off the filler a month later, you would see rust has formed due to this condensation, affecting adhesion. Because of this, it is recommended to apply your epoxy primer first, and filler over top of the epoxy, as needed.