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Hi guys

Im having a number of points on the nissan patrol which have started to rust the main 4 areas are the front two body mounts, two rear doors and the upper beading of the barn doors at the back. Is this is common problem.

I am getting this tinkered and repaired and saw an electronic rust proofing product from Couplertec - Home

Is anyone using this and does it really work. They say they use it for lifeguard and mining vehicles so I assume that it must really work.

Why do the manufacturers not fit a product like this on the vehicle when they sell it to you.

regs
Crazylankan
 

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Have been meaning too, but there always seems to be something else ahead of it.

Mind you I wasn't aware of that brand, so thanks for the heads up.
 

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If you hook those up to a hiclone they make a pretty good electric supercharger.
Dont forget to use a magnetic fuel filter, and put the hiclone in the other way around because you are in the northern hemisphere.


no they dont work.
 

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I've got a mate who does rustproofing for a living. We have a lake on one side of us and the ocean on the other so most of his customers live near or on the water. He sells both the electronic and the spray on stuff.

Even though he makes a heap more money out of doing electronic rustproofing he will always recomend the spray on stuff instead. He only fits the electronic units if they insist on it but other then that the spray on is a lot more reliable.

Cheers Mick.
 

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I spent a while checking out electronic/chemical rust treatment and decided on chemical.

From what a figured cheap fleabay electronic kits are absolute crap and only work when the vehicle is underwater.

It seemed 50/50 about whether expensive electronic kits worked, those with them said they are good while others swore against them. Be carefull with testimonies regarding marine equipment and boats etc as electronic protection works better when the vehicle is submerged.

I don't think you will get a definitive answer.

Also the GU has issues with earthing and some reports suggested that electronic systems can cause electrical gremlins to surface.

I bought the patrol second hand through a nissan dealer and they tried to get me install an electronic rust protection product (can't remember the brand but it wasn't couplertec) but when I started asking questions they didn't know much about it.

I talked to a few rust proofing companies (endrust etc) and they recomended chemical treatment for high risk conditions i.e. beach driving. Once treated Endrust garuntee the structure of your car against rust for the rest of it's life if you maintain yearly resprays ($60 per spray). Not sure how hard it would be to get a new car out of them but in the end I figured that is better then an electronic kit that may or may not work.

On a side note they didn't do a great job and won't tell my what product the used so I can't touch up bits they missed. Also it is a pain in the arse to work under the car now there is sticky gunk everywhere.
 

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I have one called "Counter Act" that has been on the Patrol since 2003. My Patrol has always had to live in the weather so I was willing to try anything that might vaguely help.

As has already been said I don't think you will get a definitive answer - who knows what would have happened if this unit was not on? Would it have rusted or not? A definitive test would need at least two cars the same, one with the unit and one without, and they would have to experience the same conditions to see if there is any difference between the two.

I have had some minor rusting but that could have been explained away by allowing the battery to go flat while being overseas for extended periods.

So.... even as an owner of one of these things, I cannot assert that they do or do not work. Friends sometimes have a laugh at me and ask me how my "Peter Brock Polarizer" is going - bastards!

Neil.
 

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Agree with NOC000... my 94 GQ (sold last year) and not a single speck of rust on it anywhere incl the rear side windows and I live in a beachside suburb. Would the GQ have rusted without it?... who knows...

My '97 GU came with an up market one already professionally fitted...
Am I going to take it off because people say they "don't work"?... Hell no
Would I have fitted one myself?... Hell no... ROFL
 

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Having been exposed to electronic corrosion protection for many years in the commercial shipping industry and seen its effectivness, i was interested in how it would go on the truck. I live on the beach and spend a lot of time up at stockton, at boat ramps and beach launching so I was a prime candidate for such a system. I had had rust proofing coatings applied to other vehicles and while effective, it remained tacky for what seemed like years. This tackyness retained a lot of sand and made working under the car quite annoying.
After looking into the various electronic systems, i was sceptical to say the least but went ahead a fitted a 'Counter Act' system as i was able to get it for a good price (around $350 i think) and i wanted to avoid the undrbody coating for the above reasons. My theory was that it couldn't hurt to fit it as $350 would get you about 1/2 hr at the panel shop so it would only have to a very minor effect to be of some benefit.

5 years down the track it is difficult to say if it has had any effect but if i had to give an answer i would say probably not.

My advice would be to track down a good underbody coaring that dries within a day or so and wash your car regularly.
 

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Ask anyone who services mine vehicle and they will tell you They Do work! An electronic rust proof unit will not stop rust but will slow the process right down,

I fitted one on my old lux just a cheepie sanded the chassis down to metal stuck a pad on the chassis. The area around the pad only started to show signs of surface rust after 3 months. Sand a area on your chassis down to metal and see how long it lasts without electronic protection.
 

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I have an electronic rust prevention system fitted, I think it was couplertec, but can't quite recall. Any electronic rust protection/prevention system, is only a prevantative measure and won't stop you car from rusting. period. What it does is slow the "growth" of rust.

The "theory" and yes it is a theory based on facts. Rust is a product of the metal loosing ions, through corrosives like salt etc. Electronic rust prevention uses the capacitive effect to hold onto the ions, therfore no rust. For proper operation it is recommended to place the pad on a painted flat surface. So voids, unless the instructions said otherwise, you should have left it painted.

Because it is a prevention method, you will always need to wash down with fresh after being on the beach.

I choose electronic as I didn't want to recoat every year and have to deal with the sticky stuff. Also theoretically, as long as all your metal parts are earthed to the point where the pad is, it's rusting should be slower.
 

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For the life of me azza I cannot understand why someone would attach an electrode that is supposed to conduct an electrical current through the body of a vehicle to a painted surface. Paint is plastic and non conductive so the electrical current that should be making it's way to the vehicle body is stopping at the electrode/paint interface.

Am I the only one that thinks this.
 

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Do I have to drag out my mega post from ages back for you poor silly people?
 

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If you hook those up to a hiclone they make a pretty good electric supercharger.
Dont forget to use a magnetic fuel filter, and put the hiclone in the other way around because you are in the northern hemisphere.


no they dont work.
I have one and they do work. It is a proven principle that can be shown using basic electronic principle without going in to the detail it works. I agree with the hiclone, magnetic fuel filter as this can no be proven scientificly but there have tried practically.

Many large boat/ships with metal hulls use the same technology to prevent rust.

Again its only for prevention, so if your going to drive through sea water and leave your car for a week before washing it they you will have problems eventually.
 

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And what is the differnece between the large fully electrically joined hull of a large vessel immersed in an electrolyte compared to a 4wd body/chassis?
 

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For the life of me azza I cannot understand why someone would attach an electrode that is supposed to conduct an electrical current through the body of a vehicle to a painted surface. Paint is plastic and non conductive so the electrical current that should be making it's way to the vehicle body is stopping at the electrode/paint interface.

Am I the only one that thinks this.
The pad acts as a capaciter across the painted surface and will allow the transfer of electrons through it. It does not need a direct connection and the circuit would not work if that was the case.
 

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had mine on for years and it is a good product but if your car is suffering from rust then it will not stop the spread just slow it down.
 
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