The Stovebolt Site Forums The Shop Area Paint and Body Shop Cab underside & frame paint

I have decided to use one of the following to paint the underside of the cab and frame of my 1965 C10:

1) Eastwood Rust Encapsulator Premium/Eastwood Satin Chassis Paint

or

2) Rust-oleum Rusty Metal Primer/Rust-Oleum Semi-gloss Black Professional Enamel.

Whichever one will follow wire brushing with my hand grinder and cleaning with acetone. I plan to apply the primer and paint with a brush rather than spray cans.

I have looked at POR 15 but for some reason not that enthused about it. Maybe it's the prep required.

Any thoughts would be appreciated.

Thank You