General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.

Fighting rust on aging car/Prepping car for touch-up paint

Old Mar 15, 2012 | 11:15 PM
  #1  
Hondahonda's Avatar
Thread Starter
|
Member
Joined: Apr 2011
Posts: 159
From: Kansas City
Default Fighting rust on aging car/Prepping car for touch-up paint

Well, after replacing just about everything under the sun on my car I have relaxed a little. For about three whole seconds, then I got to thinking about all the rust pellets on my car. (Pictures to come later)

Well, I took some fine steel wool and very carefully brushed off the rust and now I'm at the point where I don't know what to do. I've heard conflicting reports, some people say to prime it other people say to I can just dab the touch-up paint on there.

Thoughts?

Also, the rear doors have some pea-sized spots all over the place.

Aside from keeping my car inside is there anything I can do to prevent these?

Also I have significant rust on the bottom edge of my passenger side rear door. It's surface rust but I have to fix it sometime this summer or it might start eating through come next winter. So much so it's deteriorated this metallic-esque/rubber strip that hangs at the bottom of the door.(Pictures coming tomorrow)
 
Old Mar 16, 2012 | 12:34 AM
  #2  
PAhonda's Avatar
Super Moderator
Joined: Sep 2006
Posts: 16,329
From: Houston, TX
Default

I would read the directions on the can. The touch-up paint should recommend what to do when painting over a scratch vs bare metal.
 
Old Mar 16, 2012 | 09:38 AM
  #3  
TexasHonda's Avatar
Super Moderator : And A Texan
Joined: Feb 2007
Posts: 9,652
From: Katy, TX
Default

I like to use the Rust Converter spray and metal primer before spray painting. This is more of a repair to prevent rusting rather than cosmetic repair, so perfect paint is not the goal.

good luck
 
Old Mar 16, 2012 | 11:19 AM
  #4  
JimBlake's Avatar
Super Moderator
Joined: May 2006
Posts: 18,398
From: Wisconsin
Default

X2 - Rust converter to prevent the rust from coming right back.
 
Old Mar 16, 2012 | 03:08 PM
  #5  
EXV6NIGHTHAWK's Avatar
Senior Member
Joined: Mar 2007
Posts: 710
Default

Yes, if any rust is left, it will come right back. If you can't get it all, use the converter.
 
Old Mar 16, 2012 | 03:25 PM
  #6  
northwoods's Avatar
Joined: Apr 2011
Posts: 6
Default

Rust converter is little more than phosphoric acid. I have used a weak solution of this for rust conversion and it works quite well. Turns it black like the rattle can stuff. Best method is to remove the rust, treat it w/ converter, then put a waterproof coating on it. Most rattle can paints are not waterproof -i.e. water will penetrate the surface and start the rusting all over again. I will be using an epoxy-based sealer over bare metal on an upcoming repaint on a 92 ex with lots of body rot. Heard this works to stop rust for good.
 
Old Mar 16, 2012 | 04:39 PM
  #7  
Hondahonda's Avatar
Thread Starter
|
Member
Joined: Apr 2011
Posts: 159
From: Kansas City
Default

x 2 rust converter, that sounds exactly what I need for this rear door. Where can I get some?

Here's some of the damage. It's mild, but what really worries me is some rust I found under the vehicle. I'm not sure what it is, I marked it in this picture. It looks apart of the steering/suspension. Is this the sway bar?

http://farm8.staticflickr.com/7183/6...38215a2a_b.jpg



Lining that's rusted off:

http://farm8.staticflickr.com/7037/6...5a195865_b.jpg

Specks of rust on the door.[I like to stop things before they start... ]

http://farm8.staticflickr.com/7204/6...173f8d14_b.jpg

Rear Bottom-edge of door:

http://farm8.staticflickr.com/7038/6...a23b3c74_b.jpg
 

Last edited by Hondahonda; Mar 16, 2012 at 04:55 PM.
Old Mar 16, 2012 | 06:39 PM
  #8  
TexasHonda's Avatar
Super Moderator : And A Texan
Joined: Feb 2007
Posts: 9,652
From: Katy, TX
Default

Yes, that is the anti-sway bar. It's a solid bar, so should be easy to repair. Probably surface rust. It can be disconnected and removed for access.

good luck
 
Old Mar 18, 2012 | 12:48 AM
  #9  
Hondahonda's Avatar
Thread Starter
|
Member
Joined: Apr 2011
Posts: 159
From: Kansas City
Default

Well, I checked out my other driver's side rear door it's in a little better shape. What I thought was a lining was actually the metal lip on the bottom of the door.

Rust is eating away the whole lip on the passenger side rear door! I want to remove the rust and stop it, so I picked up some rustoleum with rust converter and it describes it exactly as you said it "converts rust to black paintable surface" Although I am still worried it's not going to enough to save the door.

I've seen scotty kilmer use some 3m liquid weatherstripping as an instant seal. If I get the rust to stop(dubious that's even possible) would this be overkill? Seems like an easy way to make a fast and special seal wherever you want it.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
grizharris
Engine & Internal
1
Jun 23, 2015 06:40 PM
MessAround
General Tech Help
4
Jan 13, 2014 06:24 PM
arexcrooke
Appearance
6
May 16, 2008 11:28 AM
XxPuNkTuReXx
Detailing
0
Feb 22, 2007 08:41 AM
chasem
Detailing
1
Aug 15, 2006 04:47 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:56 AM.