We had two days of 60ish weather so I got some work done on the paint.
First thing to notice is that this paint sets up with a natural kind of wax finish, which makes it very smooth. See how water is beading up instead of sheeting?
I don't know if it's just the rustoleum (never seen that before though) or if it's the Penetrol additive, or what. However, as soon as you touch it with any kind of abrasive the "wax" disappears and exposes orange peel underneath.
This all has to be wetsanded smooth. Last time I spent over a week wetsanding with 1200 and 1500 grit. I'm not interested in doing that again to get right back to the same place, so I am doing the whole thing with 800 grit for now. Once the "wax" has been removed and the goosebumps smoothed down, water starts sheeting off:
With 800 grit, it goes really fast. I got the left side yesterday and the right side today, and will do the roof and the hatch the next time the weather is above 40 (should be Friday).
My current plan is to finish wetsanding with 800, then use a roller to touch up wherever I went too deep, let cure, wetsand the patches with 800, then start heading up to 1200 and 1500 and 2000, then polish.