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What’s best for removing rust from chassis

Discussion in 'Defender 90 / 110 / 130' started by Mr G Imp, Nov 7, 2020.

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  1. landowner

    landowner Well-Known Member

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    You get some inside through the holes but my 1984 chassis was very good on the inside, as long as it gets ventilation to dry out it'll last ok, plenty of sixties and seventies chassis still around
     
    Dippypud likes this.
  2. Britcyclerider

    Britcyclerider Active Member

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    I use 80% phosphoric acid on all rusty steel parts. Once flaking rust has been removed, paint it on, wipe after a few hours and then leave to dry for 24 hours prior to priming. It's very effective and a lot cheaper than buying branded rust removing products. Obviously H&S precautions need to be applied!
     
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  3. v8250

    v8250 Well-Known Member

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    +1 phosphoric acid is highly effective at etching and neutralizing...I also use hydrochloric acid when restoring some parts [but use with absolute care and outdoors only]
     
  4. flat

    flat Well-Known Member

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    +2 on phosphoric acid,

    i also use fertan rust converter which works well aswell
     
    wireman likes this.
  5. Shippers

    Shippers Well-Known Member

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    IMG_20200325_110004.jpg IMG_20200325_110015.jpg IMG_20200329_112821.jpg
    Before and after treating my P6 shell with rust converter after wire brushing...left a couple of days and sprayed with a non-porous red primer...
     
    kevstar likes this.
  6. johnsonca9

    johnsonca9 Active Member

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    Norton blaze rapid strip discs (or cheaper equivalent off Amazon).

    Changed my perception of how easy it can be to strip paint, rust and underseal and they are so quick compared to flap discs, not do they get clogged up easily.
     
    v8250 and flat like this.
  7. Cavey_P38

    Cavey_P38 Well-Known Member

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    i spray mine with waste oil twice a year,, last year even treated it to brand new oil...lol
    Normally once in Spring and then once as we go into shooting season and it gets all wet and slubby

    I swing it off the telehandler and steam clean the crap out of it

    let it dry for a couple of days on the ramp, then give it a good spray with oil, normally have to mix it withy a splash of diesel to make it flow in the gun.

    Then leave it to dry for several days...

    TOP TIP
    Don't do it two days before your MOT,, my tester is a mate and even he had a sense of humour failure when i made that mistake.....lol
     

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  8. tottot

    tottot Well-Known Member

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    Same sort of treatment has kept my 1090 90 in good order, still has original rear crossmember.
    Second TOP TIP Do not park on someone's posh drive or face some more sense of humour fail.:oops:
    Plus 3 for phosphoric acid as well.
     
  9. Dr Strangeglove

    Dr Strangeglove Member

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    Where is the best place to get phosphoric acid?
     
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