Rust Stop

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Do those things really work? cuhulin

Reply to
cuhulin
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Rust Never Stops!

Reply to
aemeijers

Only if you already have a deer whistle and a fuel line magnet.

Reply to
AMuzi

Cathodic protection works, when applied properly. There is no way to use it in properly in the applications one would normally conceive for automobiles. Dont waste your money.

Reply to
hls

This does:

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Reply to
tnom

No. Physically impossible. A small part of my job is recommending corrosion protection systems on equipment at industrial complexes.

Reply to
Paul

Well, maybe if he parks underwater? That is the only place I have ever seen sacrificial anode systems.

Reply to
aemeijers

U.S.Military and some bridges have sacrificial anode plates to help keep down the rust.I don't doubt the Military regularally inspects them and replaces them as needed.One of Mike Rowe's Dirty Jobs was helping to remove and replace some of those plates. cuhulin

Reply to
cuhulin

This would not be a sacrificial anode system. It has a power source.

Sacrificial anodes are made of metals like zinc, or aluminum, or others which generate current as they corrode preferentially.

Systems which are driven by electrical power from mains or the like are similar though.

Reply to
hls

Yes it does. It'll run out of unoxidized metal eventually.

Reply to
Paul Hovnanian P.E.

I had one on a Honda, 1988. I think it was $300 back then.

My wife kept the car after we separated, and it developed a small amount of rust on the driver's side behind the rear tire where the bumper meets the body. This is the usual spot for rust on ALL Hondas and Acuras.

Did it work? Maybe. That was the only rust spot on the entire car. But then, I'm anal anyway and washed and waxed and primped the car for 4 years. She had it almost 10 (total) and that was the only place rust developed.

Would I do it again? Nah. I have a Corolla I bought almost new in 1986, NO rust protection at all. I bought it from the Service Manager at a local Toyota dealer. I asked him about undercoating, etc and he said NO!! The car went 17 years before even showing any rust at all.

It's interesting the car they use looks like a '90 Subaru Loyale, what's that, 20 years now, and a known rust bucket. I have an '89 GL coupe that looked good when I bought it three years ago and is starting to look like the one depicted. Of course, I only drive mine in the winter in Mass where they use salt even if it only rains.

Reply to
Hachiroku $B%O%A%m%/(B

Hachiroku $B%O%A%m%/(B wrote in news:hnll17$87g$ snipped-for-privacy@news.eternal-september.org:

Unless you live in a place where you get snow and salt in the winter, that seems to me a disproof.

You were asking him to provide it? Don't blame him. It lasts at least two years and stops *all* rust if done properly. Excluding paint/chrome problems of course. Do any cars *have* chrome anymore?

Not much snow compared to up here. I've been in Boston at the tail end of December and there was 3" of snow on the ground and none on the road as I recall. This would have been about 1980.

Reply to
fred

snipped-for-privacy@webtv.net wrote in news: snipped-for-privacy@storefull-3171.bay.webtv.net:

No. For chemical reduction to take place you need something more than just electricity. You need a chemical base to remove the oxygen from the metal. An alternative that *might* work is a parasitic zinc ingot attached to bare metal on the body like they do with ships.

Reply to
fred

Electric current CAN and will reduce many chemical species. In the opposite direction, electrical current CAN and does oxidize chemical species and cause corrosion.

Electrochemistry is clear and indisputable in this sense.

Your post is incorrect in the broader sense.

You can prevent or greatly reduce electrochemical corrosion in many cases by applying direct electrical current, either from sacrificial anodes, OR from electrically driven sources, in the proper direction.

Galvanized iron is an example of cathodic protection, where the zinc coating preferentially corrodes, providing an electrical current, yielding protection of the iron core.

This is scientifically defensible. Now, a lot of people don't really understand the physics behind the science, but it a hard science nonetheless.

Can one piece of steel protect another?? Yes, of course. A rusting piece of steel,of some undisclosed composition, can provide cathodic protection to a new and nonrusted piece of steel in a corrosion cell.

Copper, in electrical contact with steel, will normally cause the steel to decompose as a part of a corrosion cell, and the copper will be protected. This can happen EVEN if the copper is a light film of electroplated metal, and the steel surface is enormous.

The chemistry and physics of this sort of system is NOT ambiguous.

Post or email me if you want further information.

Reply to
hls

1980, 81, 82 were some of the lightest winters we've had. They were COLDER than hell (there's an oxymoron for ya!) but snowfall was light. I was living in Andover then and we didn't get very much snow at all.

'91, '92, 94 were pretty bad (one storm in '91 dumped 3 feet in one night!)

2007 was really bad. I have a picture showing the front of my house, and the snow is over the cars!

Yeah, we get ice and snow here, and I was surprised the car held up so well. Did the electronic rust thingy do it? I dunno, but the car had no other rust protection... (er, the Honda, that is.)

Reply to
Hachiroku $B%O%A%m%/(B

On January 30,1966 the temperture in Corinth,Mississippi got down to 19 degrees below zero. That's cold enough! cuhulin

Reply to
cuhulin

Isn't that like June in Vermont?

Reply to
Hachiroku $B%O%A%m%/(B

It once got up to 115 degrees in Holly Springs.Summers are hot and muggy and humid.Sweat like a Mule. cuhulin

Reply to
cuhulin

No thanks We get some humid days here, too but not too many.

Reply to
Hachiroku $B%O%A%m%/(B

snipped-for-privacy@webtv.net wrote in news: snipped-for-privacy@storefull-3171.bay.webtv.net:

115? that's all. We must *love* high temperature variations up here. In this one city it's been 130F and -40 in the last 30 years. One of the joys of my boyhood was standing in the middle of the street playing with the now liquid tar in the center. On the other end, when you look out and the road is clear, but there's a white colour to the road itself, you *know* you don't want to go outside - it's lower than when salt water freezes. And they use KaCl not NaCL.
Reply to
fred

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