I did not know you guys use rattle cans for restoration. You can buy a quart of real primer(such as the etching or a good 3 part primer) and get lots more coverage for the money. My son owns a body shop and we use a primer that comes in 3 parts. Primer-Reducer-Hardner. One good coat of this and then blocking good, will be ready for paint usually.
So does that primer have a recoat window, or can you just sand and apply top coat when ever? Also Im not sure I would want an etch primer, they will not work good over a phosphate rust converter or on other painted surfaces.