Join Date: Aug 2010
Location: Natchitoches, LA. at the edge of the swamp
I use Ospho on the bottom side, inside floor and engine compartment. The trick is to treat an approximately 2 sq ft section or however big a section that you can handle, with the Ospho. Let is sit for about 10 minutes, then hose off with plenty of fresh water. Immediately after the fresh water rinse, dry it off. I used towels and then my leaf blower to insure all the water was gone. After the Ospho treatment my car stayed inside for about a year and no rust reappeared, except for a couple of spots where my sweat had dropped on it. And this is in an area that routinely sees 98% humidity. I primed the treated area with Kirker Endura Prime Epoxy
The white residue is an oxide that forms if the Ospho is not completely neutralized. It can be re treated or simply sanded off.
I also tried a bottle of PickleX 20, it's like Ospho on steroids and very expensive. A 16oz bottle of PickleX20 is about $50.00, a gallon of Ospho is about $35/gallon.
The Fauxstang. Dynacorn 67 fastback. Dart SHP 363, Close ratio Magnum 6 speed, 3.70 Eaton Truetrac in a fabricated full floater 9", SorT coil over suspension. Still in pieces.
'14 SHO with most all the bells and whistles. Stock for now.
F-150 SCab daily driver
Last edited by j persons; 06-24-2019 at 06:13 AM.