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Topic: The best rust cure ? (Read 872 times) |
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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The best rust cure ?
« on: Jan 8th, 2009, 3:04am » |
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Is there such a thing as a permanent rust cure or is it all just a load of old cobblers ? 
I've tried so many treatments in the past (Truscan, Hammerite, Kurust, Jenolite etc), but they've never been a permanent cure....the rust just keeps coming back again 
Been trying to get hold of a tin of 'Granville' heavy duty rust remover/converter (as used on oil rigs & by the MoD & NATO....apparently) to see if the stuff really is as good as they say, but can't seem to find it anywhere 
Opinions please 
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pete from Hull
Senior Member
Non Scorpio at the moment, but still interested...
Posts: 1365
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Re: The best rust cure ?
« Reply #1 on: Jan 8th, 2009, 7:33am » |
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Hi Jon,
Rust or ferrous oxide is caused by the oxidation process, when the metal returns back into the chemical state, as in iron ore.
For it to happen there needs to be the presence of water, acid/alkalli (salt) and bare metal. With these in place comes the process of electrolysis.
The way to stop this is to remove one or more of these ingredients.
In past years I have found that if you completely remove ALL the paint, dirt and rust residue back down to bare metal using a Wire brush, sander or acid treatment (which should also have any residue removed) you can then paint it with ordinary Fibre Glass laminating resin, this doesn't actually cure the rust but it takes away the oxygen component that causes it to occur in the first place by encapsulating it. It works best on areas where there are no layered joints or fittings etc which tend to harbour moisture and can cause the problem to return after a while.
I used this method on the underside and Chasis of my old Wartburg and it kept the problems at bay for 13 years. I also injected polystyrene foam into the cills and box sections.
 hth
Pete
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Simmo
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Re: The best rust cure ?
« Reply #2 on: Jan 8th, 2009, 8:26am » |
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Jon, go to www.frost.co.uk a company who deal with car restoration products. They have Granville on page 50 of their catalogue. Tel.number 01706 658619. (Rochdale, Lancs). Mike.
Here
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gost
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Re: The best rust cure ?
« Reply #3 on: Jan 8th, 2009, 6:59pm » |
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Mike, where do u get all this info from 
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2.3 ultima
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pinto
Full Member
TD04 on a galaxy manifold ? whooooooosh !
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Re: The best rust cure ?
« Reply #4 on: Jan 8th, 2009, 10:11pm » |
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Only cure - cut it out
Rust is a pernicious little sod - true its just the oxidation of iron- but once the process has started, little side reactions occur with the impurities in the steel that mean corrosion can continue even if you break the rust cycle by excluding air or water.
There are coatings that will kill it dead and stop it - stuff like Lead Chromate or Micaceous Iron Oxide based paints - but these are neither readily available outside specialised coatings, nor in most cases beneficial to your health....
You could always carry a magnesium "sacraficial annode" in a salt water pot in the boot....
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: The best rust cure ?
« Reply #5 on: Jan 8th, 2009, 11:04pm » |
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on Jan 8th, 2009, 10:11pm, pinto wrote:| You could always carry a magnesium "sacraficial annode" in a salt water pot in the boot.... |
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Doesn't everyone??
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: The best rust cure ?
« Reply #6 on: Jan 9th, 2009, 12:06am » |
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Thanks for the answers & info guys ...
Next question.....How do I go about suing all the companies that produce these rust remover products for making false claims ?
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Simmo
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Re: The best rust cure ?
« Reply #7 on: Jan 9th, 2009, 8:50am » |
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on Jan 8th, 2009, 6:59pm, gost wrote:| Mike, where do u get all this info from |
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Think I first saw an advert in a Car mechanics magazine many years ago and they send out a catalogue every so often. 
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mr._floppy
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Posts: 100
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Re: The best rust cure ?
« Reply #8 on: Jan 10th, 2009, 4:18pm » |
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Which brings us to that age old chestnut.
Which is best for rust prevention, kept in a nice garage overnight, or left outside in the wind and rain ?
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gozz
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Been around awhile
Posts: 3475
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Re: The best rust cure ?
« Reply #9 on: Jan 10th, 2009, 6:17pm » |
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They do just as well outside with frost precautions,unless a heated antihumid pad is available
GOZZ.
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Simmo
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Re: The best rust cure ?
« Reply #10 on: Jan 10th, 2009, 6:49pm » |
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Or to follow in the footsteps of one of our 'founders' Eric R have aircon in the garage!!.
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