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What primer to treat rust on frame

Discussion in 'General Tundra Discussion' started by Big Jeff, Oct 4, 2019.

  1. Oct 4, 2019 at 6:04 PM
    #1
    Big Jeff

    Big Jeff [OP] New Member

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    Just recently purchased my Tundra from the St. Louis area. I was surprised on the amount of rust on the frame and hardware. It doesn't seem to bad just surface, but want to get a handle on it before this winter, I've heard that Ospho is a good product to treat and POR-15 to seal the area. Any other recommendations for the rust under my truck on the frame?

    upload_2019-10-4_20-3-34.jpg
     
  2. Oct 4, 2019 at 6:25 PM
    #2
    Hbjeff

    Hbjeff New Member

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    Por-15?
     
  3. Oct 4, 2019 at 6:27 PM
    #3
    Big Jeff

    Big Jeff [OP] New Member

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  4. Oct 4, 2019 at 6:35 PM
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    TILLY

    TILLY Gently Used Member

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  5. Oct 4, 2019 at 7:50 PM
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    Rubberdown

    Rubberdown Spilling my guts here.

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    What he said. Knock everything off, Rust converter, rust converting primer, paint.
     
  6. Oct 4, 2019 at 8:04 PM
    #6
    FirstGenVol

    FirstGenVol Allergic to Darkness....

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    I would add one step after painting... Spray everything with fluid film(or similar) to protect it
     
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  7. Oct 4, 2019 at 8:10 PM
    #7
    Pudge

    Pudge Super Secret Elite Member #7

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    Definitely do the best you can to remove any rust, then use a rust converter primer.
    Idk if things have changed but I always liked POR15 and recommended it, but a few recent reviews have left a lot to be desired. So definitely do your research there.
     
    Big Jeff [OP] likes this.
  8. Oct 8, 2019 at 7:41 PM
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    MAN N BLK

    MAN N BLK New Member

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    Rust master from kimball midwest is what I’ve used. It’s a converter similar to por15. Works great and looks great
     
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  9. Oct 8, 2019 at 8:03 PM
    #9
    TILLY

    TILLY Gently Used Member

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    I never had any luck with por15. You need to use a couple of their products before painting, including a neutralizer if i remember correctly. after a few years, it started bubbling and flaking off. On a side note, read the directions very carefully which i obviously didn't, and make sure that you have every inch of your skin covered. I got under my old truck with a gallon and a paintbrush and got covered in it. There is no product on earth (besides the one por15 sells) that will remove the paint from your skin. It took a full two weeks for the paint to wear off my skin...The best part was that i had a family wedding a few days after my paint job, the wife was less than pleased. :angrygirl: :thumbsup:
     
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  10. Oct 8, 2019 at 8:22 PM
    #10
    JohnLakeman

    JohnLakeman Burning Internet Daylight

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    Ospho is a rust converter:
    https://www.westmarine.com/buy/ospho--rust-converter-metal-primer-gallon--P012222196

    POR-15 (POR=PaintOverRust) is a top coating that can be applied over light rust, and cures to an extremely hard finish. I had excellent results with it 15 years ago, but I can't offer any recent experience if the formulation has changed. The only issue for exterior or chassis applications is that POR-15 wasn't UV resistant.
     
  11. Oct 8, 2019 at 9:22 PM
    #11
    bensky

    bensky PlatinumPro

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