Rust removers and converters Fertan products. Do they work?? 

I appreciate your test but.. You need to say or add the brand name of these products. Just searching by some arbitrary part number for rust convertor or remover etc pulls up nothing. Except products with that part number in their product number. Or other videos on the subject like.. part 1. And CRP automotive, which you linked to, sells a bunch of different brand products. Making it rather frustrating if you want to use the same product you demonstrate.

This was an uncomfortable listen to

I put oil on after RC nhoilundercoating.com has worked well for me. Never had any luck with paint.