Okay, out of this confusion I believe treating the bare metal boils down to two possible courses of action.
1. Go through the Metal Prep process of cleaning the metal with acid, with the washing, scrubbing, wiping and cleaning.
OR
2. Skip all that mess and just apply a coat of self etching primer over the blasted and cleaned (as in remove all the residue and fingerprints) bare metal.
If you can simply use self etching primer WHY would anyone even bother with the acid process?
Can something so simple possibly get any more confusing?
