WHich Chemical can be used for Stripping the Radiator for paint

Greetings FABO,

I want to repaint my Radiator but I'm not sure how I should approach stripping it down. I was thinking about using aerosol aircraft stripper but wondered if that might be too corrosive.
Another thought I had was using Easy Off oven cleaner.

Please share your experience.

I should say that this unit was recently painted but I am unhappy with the result and my OCD is kicking in.








Thanks!