odd aftermarket product

[jry]

Canadian Tire was advertising a rust proofing deal that you would bolt to the sheet metal under the hood and power off of your 12V. About 199 bucks. Anyone have experience with this? Does it work?

[GMCSonoma]

An anode? Boats & ships use these...

[F14CRAZY]

I've heard of these, but haven't found any good reports on whether they really work or not

[big swede]

Why does everyone still worry so much about rust proofing. Do the northern states use a different type of salt than what they use farther south. I haven't seen a single car under 15 years old rust out like they did before the factories started using excellent rustproofing.

[W.A.F.U.]

Originally Posted by big swede

Why does everyone still worry so much about rust proofing. Do the northern states use a different type of salt than what they use farther south. I haven't seen a single car under 15 years old rust out like they did before the factories started using excellent rustproofing.

I don't know if it's different but a 10 year old car in the Atlantic Canada environment is pretty rusty. Rusted out? Not usually but keep in mind the the body rustproofing is different than brake/fuel lines, suspension parts etc.

And as for the CTC rust prevention, I researched that on the net and all the examples I found of it working had a groundstrap which the CTC does not.

[big swede]

Originally Posted by W.A.F.U.

I don't know if it's different but a 10 year old car in the Atlantic Canada environment is pretty rusty. Rusted out? Not usually but keep in mind the the body rustproofing is different than brake/fuel lines, suspension parts etc.

I guess it might be that the salt is actually on the ground a whole lot longer in Canada than it might be in the midwest. We probably get 3 or 4 snows a year that they dump salt on and in Canada it's probably a lot more often than that.

[Slideways]

This sounds fishy, since you already have 12 volts running through your frame and body panels as it is.

[jry]

Well, you don't have a full 12 volts on the body, just the negative to complete the circuit. Both, together, would give you a short. Here in Michigan, we usually get lots of salt.

[tom3]

What I've read this can work - if the steel is submerged in salt water - like ships in the ocean. Used to be a big market in this deal until it was studied and found to be worthless.

But when Good conducted experiments that simulate the method in his laboratory at UB, he found that the company's claims about its product were false.

"It looks like an authentic corrosion-control product," said Good, explaining that the claims sound plausible because the product is described as providing what is known as cathodic protection, and the product includes something that could be called a cathode, which is a negatively charged electrode.

"What makes it a fraud is that some of the parts essential to a cathodic system aren't present," he said.

The electrochemical system is designed to look similar to one that works very well in reducing corrosion in ships and ocean locks, he explained. The difference, he adds, is that when a ship's hull is submerged, the sodium and chloride ions in the salt water conduct electricity, creating a complete circuit.

Link: http://www.buffalo.edu/reporter/vol27/vol27n17/n5.html

[GMCSonoma]

Originally Posted by big swede

I guess it might be that the salt is actually on the ground a whole lot longer in Canada than it might be in the midwest. We probably get 3 or 4 snows a year that they dump salt on and in Canada it's probably a lot more often than that.

Maybe "down south" where you are....

Up here in WI, a duisting gets salted like crazy!

[jry]

Originally Posted by tom3

What I've read this can work - if the steel is submerged in salt water - like ships in the ocean. Used to be a big market in this deal until it was studied and found to be worthless.

But when Good conducted experiments that simulate the method in his laboratory at UB, he found that the company's claims about its product were false.

"It looks like an authentic corrosion-control product," said Good, explaining that the claims sound plausible because the product is described as providing what is known as cathodic protection, and the product includes something that could be called a cathode, which is a negatively charged electrode.

"What makes it a fraud is that some of the parts essential to a cathodic system aren't present," he said.

The electrochemical system is designed to look similar to one that works very well in reducing corrosion in ships and ocean locks, he explained. The difference, he adds, is that when a ship's hull is submerged, the sodium and chloride ions in the salt water conduct electricity, creating a complete circuit.

Link: http://www.buffalo.edu/reporter/vol27/vol27n17/n5.html

i wonder why a respected chain of auto stores would sell a sham product.

[vsd]

Originally Posted by jry

i wonder why a respected chain of auto stores would sell a sham product.

Because they can make a profit.