patch panel prep.

[49studebaker]

This forum has anwsered lots of questions, but even after purchasing EBfabman's dvd's (very cool by the way), I still have questions. Must be beginer 101 I guess. Once a patch panel is welded in, and it is welded to a portion of floor that is in very good shape but has surface rust, do you por 15, rust encapsulate, or just primer the whole thing? Eastwood rust encapsulator leads you to believe it sticks to rust better than good metal. Of course your new patch panel is good metal but the adjoining floor isn't. Would one use weld-on primer for the rockers (front to back rockers) when welding in spot welds. It seems like a dumb question, but it would be a shame to completely rebuild a cab, only to have rust start where poor prep. work was done. I think I figured out on my own, as I replace the fender, you need to scuff them up and spray top coat on them. If anyone can help. talk slow, be patient, and realize I can't read between the lines as this in my first. I did put 80 hours of work into my sons 91 s-10, filled holes in the cab, sanded, primered and painted at a buddies house, but I'm not sure it was done right.
Just had a thought, should be another thread but go figure. My son wanted that exact S-10, it didn't actually exist. We built it out of three trucks. It now has a roll pan, cowl induction hood, all black, Z-28 16" wheels. By this summer, he will be a college graduate, Electrical Engineer. My point is.....Not older or just blue collar workers like me into this stuff.