how to primer when patching?

[jackfrost]

so I've got my body back from the media blaster, and there many small patches to be made. I don't want to shoot epoxy until I've done most of the patches, so what do I do in the meantime?

should I use a weld-through primer?



should I primer it anyway, and then grind off where I need to weld? seems like that'll make my job harder.

or should I just leave it bare as long as it doesn't start surface rusting?

there are pics in my project thread