I came across some old posts regarding what is the best way to deal with rust on your vehicle. So I’d like to put it out there that I had great success doing body work for my first time in summer '21. I used an epoxy paint that is intended to be used on bare metal. Used a grinder to take off existing rust and brake cleaner to clean off any residues left behind. Then I use the following product- a POR-15 product:
No sign of rust returning my work and that is through almost 2 Canadian winters now. It claims rust prevention & so far I agree!