Hi everyone,

OK a friend of mine works in aftermarket car sales so she sells stuff like tinting and mats and rust protection.

I live by the beach and unfortunately I'm not able to garage my pride and joy so I was thinking that rust protection would be a good investment, especially seeing as I can get it on the cheap

The question is though, does it really work? The car is still in quite good nick and other than a few stone chips there is very neglible rust around. I've read the theory on the electronic rust protection and it makes sense but I remember that people are always scoffing at it whenever it is mentioned.

So if anyone can confirm its' performance either way it would be appreciated.

Zac

As far as I know based on the fact that where I'm from is an island, it does help. I cannot guarantee that it will keep it rust free for the rest of its life. I've seen rust just overpower anything metal.

Ok it does work, but it is a ripoff. What im saying you might get charged 700 for something really costing 100, make sure you do your homwork. i know this because i used to work at a toyota dealership.

You can buy the rust protection your self in the gallons and just apply to the bottom of your car with a spray gun. It runs around $20 at most auto part stores. 1 gallon should be all u need.

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Is this gallon you're talking about like rust stop paint? or is it clear?

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Nah I'm not keen on the spray on type because a) it's messy and b) it won't do anything for rust that's already there - the electronic system should stop any rust that has started from progressing much.

I realise it's pretty expensive - lucky my mate is able to get it for me at cost price

Zac

When you say electronic do you mean like a device that can stop rust?
Hmm I know where in the year 2007 but I dunno if the military has released their anti-rusting device yet to the general public.

Rust is caused by oxidizing of metal so I don't think there is a device that can create a barrier 24/7. I think this is a SCAM


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Just did some search, and anyone who Puts "GOD BLESS AMERICA" on there site is a SCAM

This post has been edited by soulshadow: Mar 16, 2007 - 8:52 AM

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No, no. Nothing will actually STOP the rust, but this just slows it down lots. I'm sure the military already use these systems. Most new 4WDs get them put on so that they don't rust away on their first trip up the beach.

It works like this:
- Rust is oxidation, which is the loss of electrons from the metal atoms combining with oxygen (or something along those lines).
- The electronic unit turns the body of the car into a capacitor so that it can be charged up with excessive electrons.
- Now when the oxidation removes electrons it is simply removing them from the stored charge, not the metal atoms.


Anyway I just found out my price - $275 installed. It's normally $695!

Zac

It does work but in cars it doesnt work as good as on other applications (like steal boat). I dont remember exactly what I read, but I think it has something to do with boat being grouned by the water and car aren't grounded at all.

found it :

http://www.corrosion-doctors.org/Car/car-e...-protection.htm

Why these gadgets do not work?

One has to understand the principle of CP to understand that the technique works by forcing a protective flow of electrons to the metal that needs protection. For this process to work, you need a complete electrical circuit to bring the electrons back. In the case of an outboard motor on a boat, the sea water completes the circuit. In the case of a bridge, the wet soil completes the circuit.

But in your car, the only way to complete the circuit on all the metal in your car is to drive into seawater or be buried in soil! There are various products on the market claiming to provide cathodic electrochemical protection to your car, just by injecting electrons into your metal work - but they don't work. Countries like Canada and the U.S.A. have actually got court orders to stop these products from being sold - simply because they don't work. In your car, there are lots of little nooks and crannies where dirt and/or water can collect. The rust happens not where the metal is dry, nor where the metal is wet - but at the interface between the wet and dry metal. So if you screwed a bunch of anodes right on the interface or one or two millimeters thereof, you would protect your car. But you would need thousands of these anodes over your car.

This post has been edited by Rayme: Mar 16, 2007 - 5:47 PM

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I appreciate the advice Rayme, but am confused because your points are contradictory. Are you saying that the capacitive coupling system works? The system I am getting is NOT a cathodic current system but rather a capacitive coupling system. Capacitive coupling wouldn't work on boats, etc because the constant contact with the water would prevent any charge from being built up.

Cathodic protection relies on the water/soil completing the circuit, thus why it wouldn't work on cars.

Zac

The process of rusting itself is electronic in principle. It works like a battery, and metal wants to return to its original state. The method works, but it's not perfect, and it's very expensive.

i dont see how this would work.

everytime you get in or out of your car, you would ground your car. And every time it rains, it would ground your car. So how would this rust protection work?

You can not force electrons on to metal and expect it to stay there for ever. it will be unstable and want to leave to something else.

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You are right but that's why the electronic unit is continually operating to 'top up' the charge from when it does get dissipated.