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Electronic Rust prevention 

 

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 Post subject: Electronic Rust prevention
Posted: Tue Feb 14, 2006 11:08 pm 
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Gday,

I was in Supercheap today and saw an electronic rust prevention device...for lack of a better descripton... Anyway I was wondering how these work, or if they even work at-all. Are they worth the $99? This one is 40v output and has a sacrificial anode.

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Posted: Wed Feb 15, 2006 12:25 am 
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i "belive" they use a plate which is suppose to rust before your car, something along thoes lines!
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Posted: Wed Feb 15, 2006 9:43 am 
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I have the older verson.
http://www.ruststop.com.au/
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Posted: Wed Feb 15, 2006 10:09 am 
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You answered your own question! Sacrificial anode means exactly that. Instead of the anode being your car (metal) surface, you place another anode to oxidise (rust) instead.

In other words, your 'sacrifising' one anode for another. You need a voltage potential to drive an electron flow to allow it to happen, hence the 40V.

Dig? I can go into more detail if you want, finally someone brings up my s**t!
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Posted: Wed Feb 15, 2006 10:16 am 
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so do they actually work though?

 

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Posted: Wed Feb 15, 2006 10:20 am 
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exholden wrote:
You answered your own question! Sacrificial anode means exactly that. Instead of the anode being your car (metal) surface, you place another anode to oxidise (rust) instead.

In other words, your 'sacrifising' one anode for another. You need a voltage potential to drive an electron flow to allow it to happen, hence the 40V.

Dig? I can go into more detail if you want, finally someone brings up my s**t!


nice description mate i could not have said it myself :)


as for them working... no idea i have never used 1

 

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Posted: Wed Feb 15, 2006 11:15 am 
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yeah they work(ish), the same system is used on steel hulled boats - you might have seen anodes on hulls before.

Cars don't rust "that" fast though...

 

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Posted: Wed Feb 15, 2006 8:35 pm 
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Happy wrote:

Cars don't rust "that" fast though...


i beg to differ lol :D
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Posted: Wed Feb 15, 2006 10:47 pm 
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yeah, exactly, a hull on a boat is a perfect example.

Next time your on a corrugated iron roof, look at the rivets or bolts that pin it down, you'll see their rusted and that's the sacrificial anode.

I dunno if they work, I assume so in theory, but I think there are better/more practical ways to prevent it, coatings, use Titanium or Stainless!!!!!!
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Posted: Thu Feb 16, 2006 1:01 am 
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These devices are illegal to sell in the United States and also other countries. Why you ask... because they dont work on things that are not submerged in a solution and thus by law are not allowed to be sold.

Some people say they work, some people say they dont... There is a s**t load of information online, especially in the 4WD arena.

They work on boats because they are in constant contact with a solution. Google this subject to find out more...

 

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