bare metal

[streetbird]

In the next weeks I will prime my car. I will sand the edp coated panels to bare metal and spray with Dupont 1220 primer to seal it but i've got some spots that have surface rust. I want to neutralize it before spray. What can I do to prepare the surface.
In the past, I sprayed sandblaster surface rust with ppg epoxy and 1 year later the rust came out and I dont want to have the same issues on this project.
Thx, Louis