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Rust Converter

Discussion in 'Spray Painting and Panel Beating' started by VS_Pete, May 29, 2018.

  1. VS_Pete

    VS_Pete Donating Member

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    Anybody use it?
     
  2. VT&VX

    VT&VX Active Member

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    Only use the one that is phosphoric acid based
     
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  3. losh1971

    losh1971 Well-Known Member

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    I have used it. It turns the metal black and is supposed to be ok to paint over. I can't remember exactly what I used it on, been years since I needed it.
     
  4. VS_Pete

    VS_Pete Donating Member

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    Thanks guys
     
  5. VT&VX

    VT&VX Active Member

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    Correct me if wrong,
    There seems to be two types.

    1. Is a sealer, makes the rust spots look black (maybe shiny clear coat) this just stops the moisture from attacking that rust from the visible side. If the moisture gets in from behind it just lifts that layer up.

    2. a chemical that converts the iron oxide using phosphoric acid, by double displacement reaction. The light oxide layer protects the underlying metal from further rust.

    You can primer coat and paint over both.
     
  6. VS_Pete

    VS_Pete Donating Member

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    2 looks the go.
     
  7. VS_Pete

    VS_Pete Donating Member

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  8. VT&VX

    VT&VX Active Member

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    Bodytech (spray pump) or ReVamp brands are good.
    Supercheap used to sell another brand X which became double the price on the same day they introduced their own brand.
    Supercheap Auto brand (SCA) which is a relabelled product made by brand X. Check label for the chemicals (phosphoric acid)
     
  9. VS_Pete

    VS_Pete Donating Member

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    AD got
    • Concentrated phosphoric acid based rust converter
    • Converts rust to a non-reactive coating in preparation for painting
    • Ideal for exposed steel work, automotive panels & industrial equipment
    • Ready to use, easy brush on application
     
  10. VS_Pete

    VS_Pete Donating Member

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    Bodytech (spray pump) or ReVamp brands are good.
    I`m in Brisbane too where do I go the get the above please.
     
  11. UTE042_NZ

    UTE042_NZ Well-Known Member

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    In NZ we have an excellent product called Blackguard, which leaves a primered surface ready for painting. Used it under a Hilux and it was perfect.

    Closest thing in Aus I could find is Plus Rust Converter and Primer. <-- Store Finder at that link.

    Basically if it has been around for more than 2 decades and is good enough that the oil industry uses it on offshore rigs, I'll try it on my vehicle.
     
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  12. VS_Pete

    VS_Pete Donating Member

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    Thanks for that I`m sure I had that one in the link many years ago.
     
  13. nyteshyft

    nyteshyft Member

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    Deoxidine is the best imo. With most rust converters you have to wipe it off with a wet rag, which I find ironic. It turns the rust black and the metal and slight blue colour. You can prime and paint over it. Like all ferrous metals you should etch prime it before 2pak priming to promote adhesion and prevent corrosion.
     

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