rust!

[bmwperson]

Hey,
My cars has signs of rust on the bottom of the doors, you see it going under black rubber. Its a 94, spent all his life in OH, now in IL. I dont know about climate in OH, but my car has this white powder everywhere, usualy in the places where the water stays after the rain, could that be one of the reasons of rusting? and how would i go by protecting my car from rust, Im gonna keep my car in the garage, Im in the process of moving right now.. and Ill dry her during the winter( nothing like dedication huh? ) But yea, I really want to get that rust out of my car. Today i spent all day washing, waxing, cleaning, scraping the rust off and putting some pink stuff thats supose to react with the rust. Anyone has advices as far as protecting, removing the rust?

Thanks

 

[vlad]

Only two ways to remove rust that I know of...
1. Replace the rusted part.
2. Cut 1/2" past the rust and weld in a new section.

Sorry, I wish I had better news for you than that.

 

[bmwperson]

the rust is just on the inside so you dont really see it and its just on the surface so i figured ill just take some sand paper scrape that rust off and put some stuff that will prevent the rust from comming back. Anyone familiar with any good products?

 

[Kenny2g]

I live in ohio. Ohio weather is just like IL. The only difference, it's not as windy. However, sand paper the rusted part and then put greese over it. I mean mechanical grease not your vegitable oil. Hope this helps.

 

[bmwperson]

OH is more industrialized ( i think ) which means, acid rain. As far as the grease goes, there has to be something better that does the job, I thought about just scraping the rust off, puting a primer on and then painting it, i used to have this black stuff also, kinda greasy but it looked better it covered better, anyone knows a product like that that they would recomend?

 

[mrferg]

Neither of those states is as bad as Michigan, my car has some rust on the bottom of the doors. Instead of doing anything about it I just think to myself that I'll completely repair and repaint my car in the future.

 

[bmwperson]

You`ll have more problems later on, i decided that during snow, rain i will always clean, dry the car up using some old towels. I figured it doesnt take that much time, 5minutes everytime. Im still looking for products to fight the rust, its not THAT bad but you know what they say, better be safe then sorry, hehe

 

[bmwperson]

http://www.hotrod.com/howto/44358/
some good info.

 

[manuel]

do you have the rust where the trim snaps on your car? i had some rust on those little holes but i sanded it and then sprayed some spray can clearcoat...no signs of any rust yet, been alsmost 7 months...

 

[bmwperson]

nope, no rust there, just at the bottom of the doors, there is this rubber on the door panel that runs around and thats where the rust is.

 

[bmwperson]

Im looking at some antirust products, POR-15®, Rust Bullet. Im thinking about buying Rust Bullet, i would just pour it into the 2 holes on the bottom of the doors, that should seel them from the inside, then i would paint it on the outside and i would be done, is that a good idea? anyone knows better products then rust bullet or had experiance with em?

 

[jschutte95]

Rust in the doors is a typical symptom of drain holes in the bottom of the door being blocked with dirt.
The way to prevent rusting is to keep these drain holes clear and clean – so DO NOT seal these holes up with rust bullet paint, or anything else. As doors usually rust from the inside out, remove the rubbish and rust flakes from the inside of the door, ensure the drain holes are not blocked, and then paint the inside metal of the doors with a rust inhibitor (Rust Bullet appears to be one of best treatments I’ve read about).
While you’re at it, check also your rear wheel arches (particularly the cavity which runs along the inside edge of the wheel arch ), road muck, salt and moisture also accumulates here.