I have a 07 ram that shows slight signs of rust on the undercarriage. I think I want to brush some of the rusting areas, and possibly go over the no rust areas with a rubberized spray.

What's everyone's opinion on this?

 

Be very cautious that everythings clean/dry and sealed BEFORE spraying the rubberized coating on .. I've seen people use that and seal in moisture causing the rust to accelerate ... Also use a rust stop coating on any visible rust , before coating

 

Thanks for your tips!

 

Personally,I would not use undercoating,if and when you get water in between it and the metal,the undercoating holds it there and helps the rusting process.
Use a rust neutrallizer then a por15,rhinoliner type product.

 

Was thinking of using Rustoleum flat black and hand painting some of the main areas.

Some of the areas that already show some rust what would be be best prep method?

As far as cleaning the undercarriage and making sure it is 100% dry what would be the best prep method for that?

 

I would be very wary of doing this, things like Rusty-Jones and other rust prevention undercoatings aren't done now because any moisture that does get in there is trapped and rusts it even faster. What vehicles come with from the factory is usually dipped under controlled conditions and will not trap moisture against the frame. Personally if it were my truck and i was going to go after it I would remove the rust then use a rust neutralizing primer as moparborn suggests and hit it with some flat black so it won't stand out.

Odds are you'll end up doing it again down the road but in some states rust is a never-ending battle, not a lot you can do other than run it through the wash regularly during the winter months when the roads are salted (I'm assuming you live in a state that does if you're having rust problems already) and make sure you get the one that includes undercarraige wash. I've had pretty good luck doing this with my '05 Dak, the salt really eats away at things if it's left on there too long.

 

I have the same problem, but much more on a 14 year old Ram

This subject is much discussed by old Mopar restorers, too

Here's some links worth looking over:

overview of problem:
http://www.landlinemag.com/Archives/...st_jacking.htm

long list of links:
http://www.corrosionsource.com/prods...Rust_Removers/

individual products all endorsed by at least one prior forum poster:

http://www.safestrustremover.com/overview.asp

http://www.hirschauto.com/

http://www.ashjentech.com/miva/merch...y_Code=Picklex

http://www.ospho.com/

http://www.evaporust.com/evaporust.html

http://www.ruststoponline.com/

http://www.rustbullet.com/

http://www.jeepfan.com/reviews/review_por15.htm

if you end up trying a particular product
please post a short review and maybe some pics before/after ?

good luck

 

However, if you were to completely seal the rust underneath a topcoat, which would remove any aditional air to touch it, it would seal it off and stop the rust from getting any worse! If you properly seal the rust it will not get worse. It's simple science! Metal+water or air=rust. Both in combination makes the process even faster even though there is already air in water. eliminate the rust from grabbing the daily life and it will not get any worse.

The first thing I did was get some Quality undercoating from Eastwood, not that spray in a can stuff. I sprayed this on with a pressurized sprayer. I sprayed it everywhere I could especially on the rear diff where it's in plain sight! I only have 2kmi in 9 months but so far so good.

 

I was directed to Eastwood from "MOPARBORN". Ended up using their RUST-ENCAPSULATOR and EXTREME CHASSIS BLACK. Used both the aersol applications and could not be happier with the finish look. It looks factory and very clean. It was very thin so applying it involved some Patience. However time will tell after the salt baths of the NE winter how it holds up. I plan to re-coat the area in the spring time..