[Healeys] chassis painting: electro coating vs. powder coating

[Oudesluys]

Tadeusz,

It is the proces used by many car manufacturers to be able to get some 
degree of coating on inaccessible areas to improve corrosion resistance.
The problem with coating an old chassis is that it needs to be 
absolutely clean and rustfree in- and externally for the coating to be 
effective.

Never have a chassis or chassis/suspension parts powder coated. 
Corrosion will creep under the coat out of sight when small deficiencies 
occur and can cause serious havoc.  In fact powder coating is absolutely 
unsuitable for car applications when chip/scratch damage and subsequent 
moisture ingression and rust can occur. I regard it as a dangerous 
practice to do so. You may use it in the interiour of the car.

I prefer simpel cleaning, removing all rust externally, as much as 
possible internally, priming and painting. After a couple of weeks, 
leaving it in a warm and very dry environment, mist the internal 
crevices with rust proofing wax, avoid thick layers of it, or 
spray/inject with a product like Waxoil. You may have to drill a few 
small holes to reach all area's. These are sealed afterward with plastic 
plugs.

Kees Oudesluijs
NL

Tadeusz Malkiewicz schreef:
> Hello,
>
> I am investigating painting of the chassis.
>
> A friend of mine recently told me, it might be possible to use electro
> coating (sometimes called Electrophoretic deposition (EPD)) for my chassis. 
> Is anyone familiar with the process? I though of using it instead of primer
> and then painting the chassis in color later on.
>
> The nice thing about it is that it's a dip process, so the entire chassis is
> painted, not just what's accessible with a spray gun.
>
> Tadek
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