Epoxy Primer vs Self Etch Primer for Bare Metal

Bare metal must have epoxy primer, self etching primer, or DTM Direct to metal primer. Primer surfacer should not be applied directly to bare metal. In this

Class on Primers Self-etching , Urethane , Epoxy primer

Spray MAX 3680001 1k Self Etch Weld-Thru Primer Red Brown (3 Pack)

Metal Primer Retailers & Dealers in India

Oil Based Etch Primer, For Bare Metal at Rs 170/litre in Indore

Bye Bye to The King: Windshield rust repair ++, Page 2

EPOXY vs ETCH PRIMER - WHICH ONE DO YOU NEED ??

I used a self etch primer on an older 57 Ford fender before realizing it's meant only for bare metal. Honestly just wanted to clean up the look and will get a paint job much further down the road, so will this be okay in the meantime? : r/Autobody

Rusty or Self Etch Primer

How to properly mix and spray epoxy primer

Bare Metal? Which is best? DTM, Epoxy, Urethane, self etch primer, sealer?