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Re: DIY Electronic Vehicle Rust Prevention

From Keithr0 <nothing.to.see@here.com.au>
Newsgroups aus.electronics, aus.cars
Subject Re: DIY Electronic Vehicle Rust Prevention
Date 2024-02-26 08:50 +1000
Message-ID <l41uifFrqq6U1@mid.individual.net> (permalink)
References <65dab557@news.ausics.net>

Cross-posted to 2 groups.

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On 25/02/2024 1:34 pm, Computer Nerd Kev wrote:
> While looking into rust-proof paints, I stumbled upon the world of
> electronic rust prevention gadgets:
> https://www.erps.com.au/how-electronic-rust-protection-works/
> https://endrust.com.au/products-services/Electronic-Rust-Protection/
> https://nilrust.com.au/product-details/electronic-rustproofing/
> etc.
> 
> Much like with the paints, the question is whether it works, or
> whether it's just snake oil. It's supposed to use conductive pads
> to create a static charge on the steel vehicle body by using the
> paint as a dilectric layer forming a capacitor. The charge prevents
> oxidation of the metal.
> 
> In this discussion it's mentioned that by relying on the paint to
> form the dilectric, it won't work in areas where the paint is weak,
> which is where rust would start anyway:
> https://www.electro-tech-online.com/threads/electronic-rust-protection-for-cars.13859/
> 
> Then again much of my trouble is from cavities in old vehicle
> bodies rusting out from inside*. The paint on the outside is OK
> until the rust eats right through, so would the electric charge
> prevent that rust starting on the inner side?
> 
> This also says "There are to date no official reports which show
> that cars with electronic rust proofing have less corrosion than
> they would without the device":
> https://www.autotrainingcentre.com/blog/truth-electronic-rust-protection/
> 
> On that basis I certainly wouldn't buy one at the prices these
> systems are advertised at, but it seems they should be temptingly
> easy to make, and maybe try out in some experiments.
> 
> I can't find any DIY designs online, but the specifications on this
> page suggests that the electronics just make a 50V peak-to-peak AC
> voltage at 12.5KHz which is applied to the adheasive contact pads
> (copper tape?):
> https://endrust.com.au/product/2-pad-cat-electronic-rust-protection-system/
>    Input Voltage > 12V/24VDC
>    Operating Voltage > 9V-32VDC
>    Output Transformers > Two (2)
>    Output Power (to each Pad) > 50Vpk-pk @ 12.5kHz
>    Ground > Negative
>    Current Draw > 25ma +/-
> 
> If that's all there is to it, then it shouldn't be hard to build my
> own equivalent.
> 
> Anyone know of existing DIY projects or authoritative proof that it
> doesn't (or does!) work?
> 
> * Waxy cavity coatings like this were actually what I was
>    investigating when I stumbled onto these gizmos:
>    http://www.septone.com.au/product/l/rustproof-4l
> 

If it worked, every ship owner in the world would be using it. 
Sacrificial anodes work under water, but ship's topsides still rust, and 
require constant re-painting.

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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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