| [ Total Views: 530 | Total Replies: 8 | Thread Id: 29968 ] |
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 4 of 50
Commited Dubber
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| posted on October 13th, 2004 at 10:47 AM |
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rust gone for ever
Can anyone recommend electronic galvanic rust prevention?
As in the units that bolt to the body of the car and act as a sacrificial anode
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VWFREAK
A.k.a.: Peter / Bones
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| posted on October 13th, 2004 at 11:55 AM |
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I bought a unit called RKILL CP3, from the middle east about 10 months ago. I paid about $80 AU. Works like a treat I think (I bloody hope). The item
is actually made in Tawian.
I haven't had a problem, but I'd try a better known brand in Australia. I've seen similar units for around $150 + depending on make.
Use fish oil if this dosen't meet the budget, $3 a can from GOLO.
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MickH
A.k.a.: Michael Hutchinson
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| posted on October 13th, 2004 at 02:00 PM |
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Hmmm....stick to the fish oil. The units work OK when all is fine....if you remove them or they stop working your car will rust faster than it ever
has....:blush
tssnq.com.au
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555bug
Custom Title Time!
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| posted on October 13th, 2004 at 02:17 PM |
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those units are a total scam, in fact i believe there was moves in the usa to have them banned. Save your cash and get some fish oil or hot gal dip
everything. |
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aggri1
A.k.a.: Aurel Griesser
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| posted on October 13th, 2004 at 03:21 PM |
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I think it had something to do with no electron return path. On a ship there's a whole lot of lovely water full of ions to carry a nice current.
Air is somewhat harder for electrons to move through. Even dirt can carry some current, so they can use sacrificial cathodes (or whatever, anodes,
same crap, different sign) on pipes in the ground.
I don't quite get it, but I have also heard that it's dodgy.
Fish oil - wear clothes that will never need to be smell-free again! My lovely old flannel smells after one long nappisan soak, two washes, and
several WEEKS on the clothes line. But my bus should be happy.
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PurpleT3
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| posted on October 13th, 2004 at 04:20 PM |
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Either a sacrificial anode or cathodic protection system is something that needs to be carefully designed and installed. Not that I have used one,
but I would be very wary of a DIY system that costs $80-$100. Like Mick said, if you are not very careful you can end up making it rust faster. Put
your money into a good paint job, fish oil etc. If it really worked for $150, everybody would have one.
Ain't nothin' like the wind in your hair.
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4 of 50
Commited Dubber
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| posted on October 14th, 2004 at 12:10 PM |
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Thanks
Last post probably sums it up for me
Go Fish Oil!!
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Andy
Son of Jim - Creator of Good
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| posted on October 14th, 2004 at 12:50 PM |
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Galvanic protection is only of use to something that is grounded, a car isn't so they are of little use.
There is also electronic units run from your battery that do a better job, but are much more expensive (~$400-$1000).
That money spent on paint and rust proofing goes a long way. Make sure you get rust proofing into all the hidden areas, there are heaps in VW's.
That said, I have fitted an electronic unit to my Kombi, in addition to paint and rust proofing. I'll let you know in 10 years if it did any good.
:thumb
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VWFREAK
A.k.a.: Peter / Bones
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| posted on October 14th, 2004 at 12:53 PM |
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If your still after even more ideas, try useing sacrificial anodes (leg ingets). They work by the lead sacrificing itself before the steel does.
Works on ships, so why not cars? just an idea.
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PurpleT3
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| posted on October 14th, 2004 at 02:41 PM |
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DO NOT USE LEAD!!
Lead in ships is used as ballast or something similar. Lead is more cathodic (inert) than steel, so you will end up protecting the lead by
sacrificing your steel body panels. Not part of the plan.
The method of protection (sacrificial anode) you are referring to works by using something more reactive, like zinc or magnesium in contact with the
steel. This is the basis of hot dip galvanising (and cold gal paints). It also only works if you have an electrolyte to complete the galvanic
circuit. Simply attaching blocks of metal to the car body will not work.
The only method which may work is the expensive type of impressed current protection Andy mentioned.
Ain't nothin' like the wind in your hair.
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lugnuts
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| posted on October 14th, 2004 at 03:44 PM |
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| Quote: | Originally
posted by 4 of 50
Can anyone recommend electronic galvanic rust prevention?
As in the units that bolt to the body of the car and act as a sacrificial anode
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no!!!! |
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