Is there any reason I can not use a self etching primer in patches? the idea is to prime as I go not leaving any bare metal behind. I found this "etch primer" in rattle cans. What about overspray, blending, should I go with an expoxy instead. I plan to sandblast and at least prime as I go. https://buyat.ppg.com/refinishProdu...tID=63817403-97a9-4ec8-98aa-d5ac0fb87258
I do not get a lot of time at home and most work is done on summer break 2 weeks or so at a time.
Thanks
Brad