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CORROSION Prevention and Repair
Topic Started: Jul 14 2014, 09:31 PM (1,647 Views)
Greywolf
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Mostly Harmless

I think one of the things that needs a lot of attention especially in older and collectable cars is how to keep them from returning to their original state -

A pile of scattered minerals loose in the earths substrata (IE: Rust in the Dirt)

And I think a lot of people have preconceptions about that very thing....

RUST IS FOUND! What do you do?

You have a good body, how to keep it from getting cancered out?

How does paint work - and what does it do for us?

WHAT is a CORROSION CELL?

Corrosion is a body of knowlege we need to look at real hard if we want our wheels to last - and it can happen to the underbody, or just to the part of it around the battery -

BUT WHAT CAUSES THAT?????



NOW BY DAMN!!!! Lets talk about that, and I am not jackass enough to claim to be the final word on that, even though the US NAVY trained me over and over again about it and how to STOP IT!

I want to hear from YOU

~Your QUESTIONS
~Your experiences
~ Your ANSWERS


ANYTHING THAT HAS TO DO WITH IT


The floor is open (? No pun intended), and if you want to keep your car alive, it is about time!
Edited by Greywolf, Jul 14 2014, 09:36 PM.
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geo pet
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" my strange addiction "

I got all excited and thought I was going to learn something lol .........
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faygoninja


:gp
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chessir


Can you teach us?
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Bad Bent
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Facetious Educated Donkey

I have http://geometroforum.com/topic/3148782/1/?x=25 which describes welding, Ospho and Evaop-Rust in posts 20 and 21. :bacon

Prevention? I had my PCV clog, which blew the cam seal, which leaked oil on the crankshaft/pulley/alternator belt and it sprayed oil on my passenger side frame horn. :D So that is well coated. Yeah, that rust is usually from the inside. :-/ So I spray a lubricant in some of the holes above the frame horns. :)
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snowfish
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Basic GearHead

Quote:
 
RUST IS FOUND..........BUT WHAT CAUSES THAT?????

Steel is Always trying to go back to it's original state. Iron Oxide.

My theory is moisture & air accelerates the process. It doesn't take salt, and chemicals, to make iron oxide, or "rust". Chemicals just rapidly accelerates the process. :smackface I've seen some sun baked desert cars covered in rust. Even ZXTjato has some rust through on an Arizona rust free car. :banghead
Quote:
 
How does paint work - and what does it do for us?

Seals the material from moisture & air. Compromise the seal and rust begins. :'(
Quote:
 
US NAVY trained me over and over again about it and how to STOP IT

Hey sailor, that's why "if it moves, salute it. If it doesn't, paint it!" :lol And with good old lead base paint. :O Haze grey and underway. :bacon

Some products, that I've used, and work really well is Permatex Rust treatment, Eastwoods Rust Encapsulator and Eastwood internal frame coating.

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Soak it until it drips! ^o)

Externally I used lots of Eastwood Rust Encapsulator.

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Followed by a good coat of Herculiner.

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The Herculiner bedliner provides an extremely tough finish and helps seal the gaps in out spot welded uni-bodies. :thumb

Then a top coat of nice, gloss, Tractor enamel.

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My current project used a dozen cans each of the Eastwood Internal & External coatings. Plus over a gallon of Herculiner bedliner. :gamerz The war on rust never ends. B-)
Edited by snowfish, Jul 15 2014, 11:17 AM.
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t3ragtop
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Turbo3 and Twincam Tweaker

what he said. ;)
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dayle1960
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Fastest Hampster EVER

Ok, where do you get the stuff you stuck in the rockers? How much $$$?
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snowfish
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Basic GearHead

:type
http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR0.TRC0.H0.Xeastwood+internal+frame+coating&_nkw=eastwood+internal+frame+coating&_sacat=0&_from=R40
Spendy for some, :deal very much so worth it for others :cheers
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dayle1960
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Fastest Hampster EVER

How do you knock the rust off the interior of the rocker panels? Or do you just apply eastwoods on top of the rust inside of the rockers?
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Car Nut
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How do you access the rockers? Have to drill holes? (Maybe went through the holes for the rocker trim shields?) I just sprayed my radiator support & frame horns last night & this morning with the Eastwoods internal stuff. I've heard of some people filling the rockers with expanding foam. Supposed to smother the air & keep out water, so they say.
Edited by Car Nut, Jul 15 2014, 06:33 PM.
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Cyborg
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McDumbass

I always used POR-15 on everything. I paint my strange dana s60 rear with it after i blew my rear and after 5 years not one little rust spot. i had them as a sponsor for my Camaro
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t3ragtop
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Turbo3 and Twincam Tweaker

car nut, i always advise against using foam to fill any voids on a car.

if you have to weld on them, the foam breaks down from the heat and creates a toxic vapor. most professional welders will refuse to weld on a car done like that. ;)

you access the rocker voids using the big access holes in the inner rocker under the carpet. you may have to pop out some plastic plugs. then you use the holes in the door frames/ tops of rockers where the push pins hold the trim on. pop the fasteners out, pull the trim off, stick the applicator tube through the holes, push the spray button, and draw the tube back.

the applicator tube has a brass tip that provides a hemispherical spray pattern and it floods the inside of the rocker.

the internal frame spray has a pea green phenolic coating with a high zinc content. the zinc chemically bonds with the iron oxide and the phenolic binds the steel to prevent air and moisture from coming into contact with it.
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Memphis metro


With a metro, stay of salted roads, drive it till it rots and junk it. That is my story and I am sticking with it. Old cars with a frame, not so.
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t3ragtop
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Turbo3 and Twincam Tweaker

doc, i have gone through 3 cars now to replace floors and rockers. i have a great deal of time and effort in them as projects. the cars were all 20+ years old and if i get half that time out of them since repairing them i'll be happy.

the best way to keep them from rusting from the inside out is to use proven rust proofing products and then try to keep them dry.

i really don't like to drive them when the rust is so bad that it puts the chassis integrity in question. i love my own skin too much. ;) i rarely drive a metro to failure.

i also take care of neglected maintenance. if i pick up a car to keep i generally go through complete systems, suspension, brakes, steering with the thought that if i haven't replaced it, i can't trust it. :P
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