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Re: DIY Electronic Vehicle Rust Prevention

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Xeno <xenolith@optusnet.com.au> wrote
> Computer Nerd Kev wrote
>> Daryl <dwalford@westpine.com.au> wrote
>>> Computer Nerd Kev wrote

>>>> OK well I'm asking for trouble with that onereally because it's a  
>>>> 1989 Jaguar XJ40.

>>> Seems to be some debate on whether or not Jags were actually  
>>> galvanized.
>>> https://www.jaguarforum.com/threads/galvanised-body-fact-or-myth.44736/
>>  OK, it looked galvanised in a wheel arch where some of the
>> undercoat was chipped off, and there was no rust there even though
>> the metal was (or at least looked) exposed. Probably just in
>> certain spots like the forum thread says.

> It most likely was galvanised and, I might add, the Jaguar was one of  
> the forerunners in a process that became common during the 90s. Pretty  
> much every car this century has been hot dipped galvanized and that  
> process began in the US and AU around 1995.

> The problem with paint as a protective barrier against corrosion is that  
> it needs 100% coverage. A scratch or stone chip is all that is needed to  
> provide a start point for rust to begin attacking the base metal  
> underneath - so you once needed to fix up stone chips and scratches  
> immediately.

I never did and never had a problem with rust.

> Enter the galvanising process. Cars tend to be hot dipped because it is  
> the easiest process and the coating is thicker - that's important. The  
> layer of zinc functions first as a barrier, just like paint, to those  
> atmospheric components that would like to react with the iron - water  
> being the perfect example. Secondly the chemical reaction of the zinc  
> with, say, the water, creates a thin layer best known as a patina. In  
> this process the water splits into ions and reacts with the zinc thereby  
> creating the "protective" patina layer.

That mangles the chemistry involved.

> This patina forms a second barrier to keep the underlying steel free of  
> rust. Thirdly, there is cathodic protection. In the electrochemical  
> reaction, the cathode (steel) gets protected whilst the anode (zinc)  
> gets sacrificed.

Doesnt happen with cars.

> Because  of the hot dipped galvanizing, the paint coaton modern cars is  
> purely  decorative.

> That sacrifice is important to note - because it is time constrained.  
> Car bodies will be protected for some 30 years and, by then, enoughof   
> the zinc will have been sacrificed for rust to begin to take over.

Utterly mangled all over again.

> At 30  years, most cars would be well and truly past their use by date

BULLSHIT.

> and well  on their way to being a recycled Chinese car.

Not because of rust.

> So, if you have a car  older than 30 years, it might be time topay more  
> attention to rust  prevention and general maintenance.

Depends on the car.

> This reminds me of a little debacle with a Chinese ute on the Gold Coast  
> recently;

> https://www.queenslandjudgments.com.au/caselaw/qcat/2021/316

> Was the LDV ute hot dipped galvanised? I suspect it wasn't. Or if it  
> was, it was a piss poor job.

>>>   Then there's a 1996 Nissan Navara ute where the
>>>> once-galvanised tray is most of the trouble,
>>>
>>> Once galvanized indicates that much of the gal has been rubbed off?
>>> If so bare steel doesn't have much rust resistance.
>>>
>>>   but the cab's started
>>>> showing surface rust lately too.
>>>
>>> It is almost 30yrs old so not surprising that there is some rust.
>
>
>>  I'm not surprised either. Such are valid use cases for a rust
>> prevention device _if_ they worked, which was my only point.
>>
>>> The truck is a 1980 International
>>>> ACCO 610A, where the cab is possibly better than most others still
>>>> out there, but that still makes it pretty rusty.
>>>
>>> Those trucks were notorious for rust, finding one without significant
>>> rust would be near impossible.
>>  Yes I more or less said that. At least the steel is farly thick so
>> there's some time to catch it before you get a hole.

> Any vehicle from the 70s or 80s was notorious for rust.

BULLSHIT.

> Note too, most  of these rusted *from the inside*  exacerbatedby lack of  
> owner attention  to cleaning out mud collectionpoints, unblocking drain  
> holes, and the  like.

Never needed to do that and I used dirt roads extensively.

>>>> I won't be that surprised if it doesn't do anything, but since I
>>>> haven't seen any tests showing that they don't work, I'd like to
>>>> find out for sure.
>>>>
>>>
>>> Worth a try if you have some spare time, just don't hold your breath
>>> expecting much of a result.
>>  Sure, I enjoy electronics tinkering anyway. More fun than arguing
>> over what consitiutes an experiment/test, but I guess I forgot that
>> aus.cars is only a place for arguments.
>>

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Thread

DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-25 13:34 +1000
  Re: DIY Electronic Vehicle Rust Prevention Ozix <ozix@xizo.am> - 2024-02-25 11:59 +0800
    Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-02-25 16:18 +1000
  Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-25 14:17 +1000
  Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-25 17:17 +1100
    Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-02-25 16:31 +1000
      Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-25 20:22 +1100
        Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-25 20:58 +1100
        Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-02-25 22:14 +1100
          Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-25 22:36 +1000
            Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-25 23:50 +1100
              Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-02-26 07:54 +1000
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-26 11:53 +1100
                Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-02-26 12:38 +1100
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-26 12:52 +1100
                Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-02-26 13:53 +1100
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-26 19:52 +1100
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-26 14:29 +1100
                Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-26 13:57 +1000
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-26 20:04 +1100
                Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-26 19:37 +1000
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-26 23:26 +1100
                Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-02-27 07:38 +1000
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-27 13:32 +1100
                Re: DIY Electronic Vehicle Rust Prevention OldIron <Hans.Andnees@gmail.com> - 2024-02-27 06:51 +1000
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-27 13:27 +1100
                Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-26 14:17 +1000
                Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-02-26 17:00 +1100
                Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-26 17:49 +1000
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-26 20:20 +1100
                Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-02-26 21:35 +1100
                Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-02-27 07:50 +1000
                Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-02-27 09:33 +1100
                Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-27 11:38 +1000
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-27 21:28 +1100
                Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-28 08:38 +1100
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-26 20:16 +1100
                Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-26 19:49 +1000
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-26 23:29 +1100
              Re: DIY Electronic Vehicle Rust Prevention Clocky <notgonna@happen.com> - 2024-02-26 05:58 +0800
            Re: DIY Electronic Vehicle Rust Prevention chop <chop654@gmail.com> - 2024-02-26 05:48 +1100
              Re: Nym-shifting Trolling Senile PIG from Oz Peeler <trolltrap@valid.invalid> - 2024-02-25 19:57 +0100
              Re: DIY Electronic Vehicle Rust Prevention Bud Frede <frede@mouse-potato.com> - 2024-02-26 05:26 -0500
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-26 21:51 +1100
                Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-27 06:13 +1100
                Re: Lonely Obnoxious Cantankerous Auto-contradicting Senile Ozzie Troll Alert! Peeler <trolltrap@valid.invalid> - 2024-02-26 20:42 +0100
                Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-02-27 08:05 +1000
                Re: DIY Electronic Vehicle Rust Prevention alan_m <junk@admac.myzen.co.uk> - 2024-02-27 08:27 +0000
                Re: DIY Electronic Vehicle Rust Prevention jon@home.org - 2024-02-27 08:38 +0000
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-27 21:35 +1100
                Re: DIY Electronic Vehicle Rust Prevention jon@home.org - 2024-02-27 13:13 +0000
                Re: DIY Electronic Vehicle Rust Prevention Frank <"frank "@frank.net> - 2024-02-27 19:46 -0500
                Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-27 19:38 +1100
                Re: DIY Electronic Vehicle Rust Prevention David Wade <g4ugm@dave.invalid> - 2024-02-27 09:33 +0000
                Re: DIY Electronic Vehicle Rust Prevention charles <charles@candehope.me.uk> - 2024-02-27 11:30 +0000
                Re: DIY Electronic Vehicle Rust Prevention Sam Plusnet <not@home.com> - 2024-02-27 21:09 +0000
                Re: DIY Electronic Vehicle Rust Prevention Frank <"frank "@frank.net> - 2024-02-27 19:44 -0500
                Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-28 08:49 +1100
                Re: Lonely Obnoxious Cantankerous Auto-contradicting Senile Ozzie Troll Alert! Peeler <trolltrap@valid.invalid> - 2024-02-27 23:15 +0100
                Re: Lonely Obnoxious Cantankerous Auto-contradicting Senile Ozzie Troll Alert! Peeler <trolltrap@valid.invalid> - 2024-02-27 10:59 +0100
                Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-02-27 20:26 +1100
                Re: DIY Electronic Vehicle Rust Prevention Paul <nospam@needed.invalid> - 2024-02-27 12:02 -0500
                Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-28 05:02 +1100
                Re: Lonely Obnoxious Cantankerous Auto-contradicting Senile Ozzie Troll Alert! Peeler <trolltrap@valid.invalid> - 2024-02-27 20:08 +0100
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-28 11:24 +1100
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-02-29 18:33 +1100
                Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-02-28 07:23 +1000
                Re: DIY Electronic Vehicle Rust Prevention Frank <"frank "@frank.net> - 2024-02-27 19:53 -0500
                Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-28 11:44 +1000
                Re: DIY Electronic Vehicle Rust Prevention Bud Frede <frede@mouse-potato.com> - 2024-03-05 08:49 -0500
                Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-03-06 08:35 +1100
                Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-03-06 08:19 +1000
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-03-06 12:09 +1100
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-03-06 12:03 +1100
                Re: DIY Electronic Vehicle Rust Prevention alan_m <junk@admac.myzen.co.uk> - 2024-03-06 20:56 +0000
                Re: DIY Electronic Vehicle Rust Prevention Daryl <dwalford@westpine.com.au> - 2024-03-07 09:03 +1100
                Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-03-07 10:43 +1100
                Re: DIY Electronic Vehicle Rust Prevention Xeno <xenolith@optusnet.com.au> - 2024-03-07 11:09 +1100
                Re: DIY Electronic Vehicle Rust Prevention Sven <Hans.Andnees@gmail.com> - 2024-03-07 12:06 +1000
                Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-03-09 09:47 +1000
                Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-03-06 08:13 +1000
                Re: DIY Electronic Vehicle Rust Prevention "cshenk" <cshenk@virginia-beach.net> - 2024-03-05 23:06 +0000
                Re: DIY Electronic Vehicle Rust Prevention Bob F <bobnospam@gmail.com> - 2024-03-05 17:55 -0800
        Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-26 05:29 +1100
          Re: DIY Electronic Vehicle Rust Prevention "floffy@gallaxial.com" <floffy@gallaxial.com> - 2024-02-25 13:38 -0500
          Re: DIY Electronic Vehicle Rust Prevention Noddy <me@home.com> - 2024-02-26 07:33 +1100
            Re: DIY Electronic Vehicle Rust Prevention Clocky <notgonna@happen.com> - 2024-02-26 06:00 +0800
  Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-26 05:42 +1100
    Re: DIY Electronic Vehicle Rust Prevention not@telling.you.invalid (Computer Nerd Kev) - 2024-02-26 08:16 +1000
      Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-26 09:50 +1100
  Re: DIY Electronic Vehicle Rust Prevention Keithr0 <nothing.to.see@here.com.au> - 2024-02-26 08:50 +1000
    Re: DIY Electronic Vehicle Rust Prevention Computer Nerd Kev <not@telling.you.invalid> - 2024-02-27 11:45 +1000
      Re: DIY Electronic Vehicle Rust Prevention "Rod Speed" <rod.speed.aaa@gmail.com> - 2024-02-27 19:23 +1100

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