stripping a patina Duster hood

Ospho. I personally, apply good wet cover, I let it sit over nite. I take scotch brite and get rid of the phosphate dust, blow it off and apply good wet over and let it sit for 15 minute but not dry, and rinse well with plenty of water. Might even be smart to neutralize twice. I have also used it where I welded and ground down the welds, as I figure it is so easy to have microscopic pin holes where I welded. Neutralizing is the key.
II admit I can be "anal" about rust. :realcrazy::BangHead: