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Old 02-04-2020, 12:31 PM   #1
DNLs1930
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Default Rust!!

OK so no big surprise to find rust on a 90 year old car BUT what are the options to stop what's there and prevent any further damage. I do not have the money to do a full body off restoration /repair of the metal so was thinking about the rust converters out there or am I really looking at a full teardown that could take (Me) a long time and plenty of cash to do.


The car is a family car, meaning it has history attached to it but that is only worth as much as the next generation thinks; so there is a line to draw in dollars and sense between preserving the car and restoring the car.
Thoughts?...
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Old 02-04-2020, 12:40 PM   #2
ronn
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Default Re: Rust!!

couple of photos of the rust areas?????
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Old 02-04-2020, 12:58 PM   #3
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Default Re: Rust!!

Agree, when one states rust, the variables are immense. Need details and photos. What is the interior like, are subrails your target, or just the usual lower cowl door bottom or rear rockers ?.??
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Old 02-04-2020, 02:00 PM   #4
DNLs1930
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Default Re: Rust!!

I will take some pictures. The car is my opinion pretty solid; rust is mainly in the rear wheel well and running board areas. area where the fenders meet the trunk/body.


Pictures soon...
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Old 02-04-2020, 05:43 PM   #5
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Default Re: Rust!!

There are chemicals that convert iron oxide (rust) to iron phosphate, and that stops the rust. Rust Mort, Ospho, and others do a good job at stopping rust. Of course, one has to clean the area and remove all loose rust before applying the rust converter. Once applied and the directions have been followed, one can paint over the prepared surface with regular paint. I have used them for over 50 years with great success.
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Old 02-04-2020, 06:22 PM   #6
David R.
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Rustolem makes one. I couldn’t find it locally, so I had Grainger order me a gallon. Seems to work pretty good unless it’s real cold.
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Old 02-04-2020, 06:35 PM   #7
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Default Re: Rust!!

Ospho and several other products that contain phosphoric acid can be used for conversion of surface corrosion to iron phosphate that is less susceptible to oxidation but it's not impervious. It will need further corrosion protection in the form of primer and paint. Zinc phosphate is a good primer but it's not easy to find. I still use zinc chromate primer but it is a known carcinogen so it has to be used with protection. Most etching primers have a diluted form of phosphoric acid added to the mix to get good adhesion and corrosion protection. Most epoxy primers work pretty well but they work better over some form of iron phosphate protection.

A person can clean and sand over a conversion coating if its rough. No one wants a rough paint job. The surface can also be retreated with a thin diluted mixture after sanding. The idea is to kill the stuff in the pores and pits. Do a final clean up and prime the surface.

Last edited by rotorwrench; 02-04-2020 at 06:41 PM.
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Old 02-04-2020, 07:52 PM   #8
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Default Re: Rust!!

I haven't had good luck with the rust converters. Of course we are up here in the salty road country and the salt gets into the metal pores and continues its degradation process. I think the best bet is to sandblast the rusty areas down to clean, bright metal then primer/sealer. After that apply a layer of paint, even rattle can paint and you will stop the deterioration.
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Old 02-05-2020, 09:12 AM   #9
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Default Re: Rust!!

I have used the Eastwood rust converter and sealer,works well.800-343-9353
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Old 02-05-2020, 10:10 AM   #10
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Default Re: Rust!!

None of the above will work if rust is in any seams. Parts will need to be disassembled and seams opened a little to get rust stopped.
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Old 02-05-2020, 02:26 PM   #11
DNLs1930
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Default Re: Rust!!

MANY THANKS to each of you I will get those pictures and let you see what I'm up against. Good to hear the converter has some fans out there but I will do not only my best but what I need to do to keep the car roadworthy so the next generation can keep our family history rolling down the highway.
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Old 02-05-2020, 09:53 PM   #12
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Default Re: Rust!!

If you are not planning on driving your car in wet conditions on a regular basis and you treat the rusted areas with a converter / paint etc... the progression of the rust will almost cease. Metal needs moisture and oxygen to form.
I have very little paint on my truck and I've kept it waxed with Johnson's Paste Wax and the rust has been held at bay nicely.
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Old 02-06-2020, 12:45 AM   #13
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Default Re: Rust!!

A name of another rust converter is called Rust Kutter, available at Tractor Supply. It also is a phosphoric acid rust converter. It works well too.

Last edited by SSsssteamer; 02-07-2020 at 12:28 AM.
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Old 02-06-2020, 11:39 AM   #14
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Default Re: Rust!!

Bill Hirsch Miracle paint works great for me, It also did a better job then the Toyota frame recall paint job on my truck.
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