I agree with that 100%.The prep, getting it to bright and shiney steel, 'as new' in my opinion is the key to a good long lasting paint job.
There are 2 big automotive paint stores in my area. Both handle the SEM line. I had the name wrong before it it "Rust-Shield". The quart can is part #38104 It is also available in gallons. If doing the frame buy the gallon. Call around, you should find it locally. If you are using this on the frame there is no need for covering it with the JD paint. Take your time spraying the nooks and crannies. You will get some runs trying to get into all the tight spots. The SEM is what I have on my frame. It is designed to be a one step process. I have done the body of my truck with the epoxy primer, filler primer, JD enamel procedure. I am happy with both so far. A local hot rod shop uses the SEM on muscle car chassis for restorations.Beck, I like the idea of the satin finish ! Where do I get the SEM primer ? When you say it comes in a can do you mean a quart can ? I've also heard another board member using the JD paint, if the price is reasonable thats probably what I'll go with. I just thought that a black frame against my 4bt freshly painted Cummins beige would look pretty nice . Thanx.