Friday, Nov 18, 2005 at 11:46
I don't think these things work, but I thought it was best to look on the websites of some of the manufacturers for an explaination of how these things work.
Taken from www.erps.com.au:
"The Capacitive Coupling system is dependent on a dielectric coating of some sort to be effective. In most cases this will be paint. Where metal surfaces are left bare there will be a surface coating of ferric oxide form, as until this coating occurs no charge can hold on the metal surface. The ferric oxide is an insulator and therefore acts as a dielectric. The System will not prevent rust stains forming on porous paint because the porous paint is not an adequate dielectric, and so a layer of oxidation forms that will tend to run after it has rained, but if left this will not proceed to rust perforation. Still, rust stains are unsightly so in most cases we would recommend a paint sealant or good quality polish to seal the paint and eliminate the problem."
So in other words, rust will still happen, but when you see it, they recommend you paint over it.......
Taken from www.couplertec.com.au:
"With Capacitive Coupling Technology, the vehicle's paintwork plays a very important role, it acts as the dielectric which holds the charge static and stops the electron flow from bleeding away."
Again, painted metal is protected (no bleep , i hear you say), and bare metal (stone chips, scratches etc...) are not.
Taken from Motorcare.com.au/erps2.htm
"E.R.P.S. prevents or slows paint oxidation, keeps paint shiny and helps retard corrosion. E.R.P.S. works on all metal surfaces, including brakes, radiators and exhaust systems, etc. E.R.P.S. when correctly applied, can stop or slow the spread of existing rust, even if very advanced.
E.R.P.S. goes a long way towards preventing electrolysis caused by dissimilar metals E.R.P.S. is proven to reduce maintenance costs, prevent rust, improve trade-in values and prolong vehicle life.
E.R.P.S. uses very little power and being a negative charge, won't interfere with car computers, radios, etc.
E.R.P.S. is transferable if you sell your existing car. It can be removed and replaced on your new car.
E.R.P.S. an all Australian Co. manufacturing quality products, from Australian made or sourced components.
E.R.P.S. guarantee everything we say and do - and we guarantee we know what we are talking about."
See if you can find the bit where it says it will definitely protect your car from rust... I couldn't. And I didn't know electronic interference only came from positive electricity....
Also from the same site:
"4WD VEHICLE FIVE YEAR WARRANTY
Applies to all 4WD vehicles that have travelled less than 120,000kms for a period of five years from date of manufacturer.This warranty is underwritten by Lloyds of London. Conditions apply"
Not only are there no conditions available on the site for purchasers to look at, but the warranty is only good for vehicles less than 5 years old!
I think if the manufacturers and distributers of these products say they don't work, I'll side with them.
Chump
AnswerID:
139936