Rust converter

Any experience with the Eastwood left as the topcoat? Not sure I will be applying the Raptorliner before the 48hr window and it wouldn't be in direct sunlight.
I left it after the 48 hrs and you just have to scuff it prior to paint.
If the Raptorliner can go over paint, just hit it with paint before the 48 hrs are up.

What's wrong with just using the encapsulator and then paint and calling it done?
Is there really that much flying around under the car to warrant putting another product on the undercarriage?

I'm asking for myself as well. I've toyed with the idea of finally cleaning up my car, but I don't want to gob another product all over it.

I found a brand new never used spray can of Rustoleum Rusty Metal Primer, and after wire wheeling the back side of my dash I was all ready to try it out.
Unfortunately the sprayer wouldn't work, tried cleaning it, but it was the can itself. Dammit!