Stop in for a cup of coffee

No problem But you can't put paint over that without putting more primer on it. Ya can't put paint over bare metal and sealer before paint is the only way to make sure you cover all the bare metal.
Not much of trying to explain but hate to see you have to redo it.

Thanks...

So if I do a few coats of a self-etching primer over the bare spot, then the entire engine bay with the Urethane primer... that'll be decent bonding surface?

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