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I've read a few places that vinegar makes a good rust neutralizer. Has anybody tried this? I've also heard you can rub a clean metal panel down with it to prevent flash rust from appearing for a few days.
I'm doing a repaint on my '76 Crew Cab. The paint was completely gone in some spots on my hood and roof, so I'm taking them down to bare metal to remove the surface rust. Where I'm working on it is not where I'm going to paint it. I'm working under a barn that's open on two sides and has a dirt floor. I also only get to work on it sporadically, so I get some stripping done, but not always an entire panel, so I need to protect some areas a couple of days until I finish stripping to apply primer.
I also found some rust in between my hood and the hood stiffener (Mice made a nest in there...) Not bad, but I want to stop it if I can. All the anti-rust products I've looked at either say to paint them on with a brush or to spray an area down and wipe it after it dries. I can't do this where the rust is. Would vinegar be a good alternative on this area as well?
No experience with using vinegar. But, for getting in those tight places I have an old plastic garden sprayerr that will adjust from spray to stream. I use Ospho or Jasco from Lowes and have had no problems painting over it without wiping. It needs 24-48 hours to work/dry anyway.
I've got a couple of gallons of Ospho, but I wasn't sure if it would be compatible with auto paints and primers. I've always used it on barn/pen projects on pipe, purlin, etc. and painted over it with industrial rust-stopper paints.
This is my first vehicle repaint, and I don't want to screw it up. LOL
I used some of this stuff on the body panels and such.
Then I read about using the vinegar method and gave it a shot.
Before;
After they come out of the vinegar, they spent several days soaking in it;
After I have washed and buffed the parts, now they are ready for paint;
I am going to use this method of soaking small parts, nuts, bolts, screws, washers, etc., in Distilled White Vinegar for several days from now on. It's cheap and seems to do a very good job. I hope this helps you out.
Chemical makeup of paints vary greatly by type. Thats why most things come with a warning to test in inconspicuos? place. Because somethings work for me does not guarantee it will work for your products. When in doubt, test. Using acrylic enamel, single stage, I have painted over Ospho, Jasco and Eastwoods Rust converter with no problems.
i agree with the others. use the ospho and forget about it.
i treat all clean metal with either ospho or jasco before priming and have never had any problems with paint finish.