Navy Steel Rust Converter

  1. Burdekin

    Burdekin Chief Bodger

    Messages:
    5,009
    Location:
    Aberdeen
    Before I started at my current work the guys went around and put what’s called Navy Steel rust converter on rusty pipework to slow the rust and allow time to plan and carry out proper fabric maintenance. (Offshore apparently have used it as well.) This was done at a gas terminal which is on the English coast. I assume the loose rust was removed with a wire brush/scraper and then the converter applied. They sell to other folk and maybe it’s what rust buster sell also. I’m a skeptic to rust converters but must admit it seems to have worked and haven’t noticed any of the covered areas getting worse. Could be a good item to inject into car cavities before the rust treatment and maybe a good temporary rust barrier for items waiting to be painted etc. Their website is but not sure if they sell to the public. https://www.navysteel-rust-converter.co.uk/


    I have nothing to do with this company, just in case folk are wondering.
     
    BarrieJ, fizzy and steveo3002 like this.
  2. steveo3002 Member

    Messages:
    5,223
    cambridge uk
    i suspect many of the advertised products are from the origin...all a milky water based product that turns the rust black
     
  3. fizzy Forum Supporter

    Messages:
    5,581
    uk
    If I remember rightly this stuff is just phosphoric acid based like all the others.
    Works better than assumed though!
     
    Hopefuldave likes this.
  4. TechnicAl

    TechnicAl Member

    Messages:
    7,084
    Location:
    Rotherham
    When I was at British Steel we used to make a "rust converter" out of old battery casings (zinc) dissolved in Phosphoric Acid. This Navy Steel stuff sounds like something similar. Just the Phosphoric Acid and it turns rust black, add the zinc and the rust goes a more grey colour. Phosphated steel is common in wire drawing....it stops it going rusty and provides a key to attach the lubricant during processing.

    Having said that I dont think I would use it in cavities....but I dont really know why....it just seems wrong.....unless you could dry it completely afterwards and then use the waxoil or whatever
     
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  5. pedrobedro

    pedrobedro Man at Matalan

    Messages:
    10,242
    Location:
    CX Derbyshire
    Years ago I used some called Naval Jelly rust converter that turned the surface to a black phosphate finish. It's still available.
     
  6. RonA

    RonA specialist in repairing sealed for life equipment

    Messages:
    1,500
    Location:
    Stockton on Tees, UK
    I think this type of product was the essence of somebody else’s thread on trying to treat rust on car bodywork. As per your post have tried many of these rust neutralising products in the past & found them wanting.
    RonA
     
  7. steveo3002 Member

    Messages:
    5,223
    cambridge uk
    dont know about you guys , im always keen to believe in anything lol , ive tried a few products that turn the rust black and claim its fixed , yet scratch it with a screwdriver and its still red rust underneath ?

    maybe dribbled into a seam it would be better than nothing ? i dunno?
     
    RonA likes this.
  8. Burdekin

    Burdekin Chief Bodger

    Messages:
    5,009
    Location:
    Aberdeen
    I've tried them before also and they are only on the surface but am just saying where they have been used on the terminal with some hand prep only it has kept the areas from getting worse. It certainly isn't proper surface prep and proper painting but has a use I think.
     
  9. TechnicAl

    TechnicAl Member

    Messages:
    7,084
    Location:
    Rotherham
    Steel WANTS to go rusty....thats its natural state....its not easy to stop it
     
  10. Rig Pig

    Rig Pig Member

    Messages:
    3,754
    Location:
    Narrwich! U.K.
    Offshore we remove rust with a blasting pot and a team of 'enthusiastic' painters! Who swiftly apply 2 pack paint on the bare steel afterwards.
     
  11. Burdekin

    Burdekin Chief Bodger

    Messages:
    5,009
    Location:
    Aberdeen
    And how much other stuff is just happily rusting away while they do their couple of metres a day? Not seen a shiny, good condition platform in many a year. :-)
     
    Rig Pig likes this.
  12. bletchmonster

    bletchmonster Member

    Messages:
    429
    Location:
    Cheshire. England.
    I bought a litre bottle of vactan rust converter years back. About once a year I brush some onto the rusting though wheel arch lips on a kangoo van.
    As suggested above, it's not a cure for rust but it's a vast improvement on no treatment at all. Those arches have not deteriorated much at all in the last 5 years. I wouldn't rely on it on a restoration job but as something to slap on to delay the inevitable it certainly helps!
     
  13. Rig Pig

    Rig Pig Member

    Messages:
    3,754
    Location:
    Narrwich! U.K.
    They are getting old like us!
    We are stepping up on fabric maintenance as there is years worth of production left and the poor old platform needs a bit of tlc!
     
  14. addjunkie

    addjunkie Member

    Messages:
    5,824
    Location:
    Northumberland. Reet oot in the sticks
    That normally means wrapping pipes with magic bandages to make then last...

    As for painters never seen an enthusiastc one yet offshore!
     
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  15. Roberto Member

    Messages:
    104
    Location:
    Glasgow Scotland
    I bought some a couple of years ago. Seems ok but have nothing else to compare it to. Only thing is it's only available in 5ltr containers at £18.90 per litre plus £9 postage. They recommended a company in Hull "Teal and Mackrill" who sell it under the name of "CooVar Rust Converter" they do smaller bottles 250 mils. Think it was about £12
     
    Burdekin likes this.
  16. Ashley Burton

    Ashley Burton Member

    Messages:
    3,486
    Location:
    Northamptonhire
    @bletchmonster I've been using Vactan also!

    I normally chip off the loose stuff & treat the solid layer below
     
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  17. Farside

    Farside Badly Welded Man

    Messages:
    3,550
    Location:
    Ireland
    Phosphoric acid is cheap enough - use a 20 to 30% solution, and mix in some tannin if you like, then jellify it with wallpaper paste if you want it to cling for a while.
    A damn sight cheaper than 18 quid a litre.
     
    Hopefuldave likes this.
  18. Burdekin

    Burdekin Chief Bodger

    Messages:
    5,009
    Location:
    Aberdeen
    That’s for the rust removal gel.
     
  19. TechnicAl

    TechnicAl Member

    Messages:
    7,084
    Location:
    Rotherham
    What does the tannin do?
     
  20. Farside

    Farside Badly Welded Man

    Messages:
    3,550
    Location:
    Ireland
    Supposedly to act as an extra inhibitor or layer of protection, according to someone who analysed one of the commercial preparations; Ku-Rust, I think it was.
     
    Hopefuldave likes this.
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