Thread: Tiny Rust Spot on Roof

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  1. #1 Tiny Rust Spot on Roof 
    GT Level Member 2FASTGTP's Avatar
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    Just noticed this today. I dont wanna sand it down and repaint and everything so is there anything I can do besides watch it eat away?? I can put paint touchup over it but thats not fixing anything.

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  2. #2 Re: Tiny Rust Spot on Roof 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Just take a piece of sand paper and fold it, use a corner of the paper to get in that spot.

    It will hardly take any effort to hit metal and clean the super small spot. Put a dab of tuch up paint in it's spot and be on your way.

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  3. #3 Re: Tiny Rust Spot on Roof 
    Moderator Russosaur's Avatar
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    And for touchup paint, automotive touchup is awesome.

    Sent from BFE
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  4. #4 Re: Tiny Rust Spot on Roof 
    I live here. 02NavyBlue's Avatar
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    Just take a piece of sand paper and fold it, use a corner of the paper to get in that spot.

    It will hardly take any effort to hit metal and clean the super small spot. Put a dab of tuch up paint in it's spot and be on your way.
    I've been doing this all along, I just barely scratch the surrounding paint a hair away from where it starts. None have rusted further yet.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
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  5. #5 Re: Tiny Rust Spot on Roof 
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    After sanding out the scale, I like to soak the remainder in a rust converter a couple times before covering with paint to impede it from coming back.
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  6. #6 Re: Tiny Rust Spot on Roof 
    GT Level Member 2FASTGTP's Avatar
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    Alright so just like 100grit sand paper?
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  7. #7 Re: Tiny Rust Spot on Roof 
    I live here. 02NavyBlue's Avatar
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    That will work, 150 is probably best
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
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  8. #8 Re: Tiny Rust Spot on Roof 
    GTX Level Member QUICKSILVER462's Avatar
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    Use "OSPHO" aka phosphoric acid to stop the rust, it can be found at auto body refinishing supply stores, maybe in auto parts stores.
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  9. #9 Re: Tiny Rust Spot on Roof 
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    If it is an isolated spot, touching up can work really well. You may have to repeat once every year or two but I've been doing this since I've owned my car 5 years now and hasn't worsened in most areas. I use a dremel tool to remove paint and rust down to bare metal.

    I have another location I've been meaning to post up where I tried using the RUST STOP and it didn't do jack.
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  10. #10 Re: Tiny Rust Spot on Roof 
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    Got it sanded down to this
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  11. #11 Re: Tiny Rust Spot on Roof 
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    Looks pretty good. Make sure there is no rust (obvious I know). I prep with rubbing alcohol and then put the touch up paint on a couple minutes later.
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  12. #12 Re: Tiny Rust Spot on Roof 
    GT Level Member 2FASTGTP's Avatar
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    Rust removed! On the way to get touch up paint, I found that my passenge window grinds on the way down. Time for a new regulator or motor. Great
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  13. #13 Re: Tiny Rust Spot on Roof 
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    Post an after pic man, we want to see your professional results!
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  14. #14 Re: Tiny Rust Spot on Roof 
    GrandPrix Junkie idrivejunk's Avatar
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    I know I'm late to this party, but a tiny piece of adhesive backed sandpaper around 320 grit, stuck to the end of a pencil's eraser ... works perfect as prep. If the car is black like mine and you have some spray paint, tearing a small hole in a sheet of paper then holding it above the surface (masking, sort of) works well. The paper blocks overspray from the surrounding area and gives the touch-up spot a soft edge that blends in a lot better than brush touch ups.
    All Grand Prix, all the time. 69 Model J, 99 GT & GTP coupes. All junk, haha.
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