stripping a patina Duster hood

ok guys i got the hood back from my blaster, he was going to do the back side for me...
so now the top of the hood is DA'd and the underside is blasted, i just put a coat of ospho on both sides of the hood, im going to wait the 24 hours and then the directions say to brush away the powdery substance thats left behind and wipe with a solvent type of wax and grease remover and then prime and paint... no where does it say to use water to neutralize, im not opposed to do that as you guys recommended thats the way to go, im also afraid that my fresh media blasting will immediately flash rust, i guess im just getting cold feet and am looking for some reassurance ... am i still on the right track?... thanks Rich