rusty bottom...

[Hellz]

so one thing i noticed after my baby sat for a year while i was deployed that it got alot of rust on the bottom.

it is pretty noticable from behind.. Diff, support arm, and frame.

Today i picked up 3 cans of Rust-Oleum Rubberized Undercoating and sprayed as much as i could underneath without really removing anything.

overall took 2 cans and i covered the whole frame, the diff, trail arms, support arms, trailer hitch, front tow hook area where it conencts tot he frame.

now, i know living in Minnesota, rust will be a issue for any vehicle.. i just hated the thought of someone laughing at my H2 when they are sitting behind me in traffic and not being intimidated instead!

if pics are requested, ill get some up soon. i was just looking for something temporary.. and at some point i know it will have to be professionally coated underneath to really put a stop to it..

but just throwing it out there for anyone noticing the same issues as me.
it works, and works pretty well. was not too hard to reach alot of areas, but i took my time around wires, and actual painted surfaces

[tyler1bo]

Was waiting for a thread like this! My underbody needs attention..drive shafts are rusted, rear axle needs a touch up, and frame is kinda peeling in some areas. Is there anything you specifically prepped or primed? I'm real close to doing this..thought about POR 15 but it's really expensive and I'm not sure I want to disassemble a whole lot to just paint it. Would really appreciate some pics if you don't mind!

[Bimmer9938]

What you did was just cover up the rust, it will continue to spread under the under coating. You need POR 30 paint, it converts the rust to a paint. I've been slowly doing sections as needed. It's expensive, but it's final. It dries shiny but unless you spray a UV protectant on it will fade to flat black which matches the factory undercoating nearly perfect. Wear gloves cause nothing takes it off your hand, it will be on for your hands for days otherwise.

http://www.por15.com/POR-15/productinfo/1GB/

[guruerror]

Originally Posted by Bimmer9938

What you did was just cover up the rust, it will continue to spread under the under coating. You need POR 30 paint, it converts the rust to a paint. I've been slowly doing sections as needed. It's expensive, but it's final. It dries shiny but unless you spray a UV protectant on it will fade to flat black which matches the factory undercoating nearly perfect. Wear gloves cause nothing takes it off your hand, it will be on for your hands for days otherwise.

http://www.por15.com/POR-15/productinfo/1GB/

Interesting...

I've been using Duplicolor Rust Fix followed by their Aerosol Bed Armor. Their 'Bed Armor' product is a slightly rubberized version of spray on liner. It's not quite as gummy as the straight-up undercoating...the combo seems to work well and may not be as expensive as some other proposed solutions.

[s_c5519]

We also did the POR15 to one of our old H2's. Lot's of people in the Jeep forums recommeded it as Jeeps are notorious for undercarriage rust.

It's a multi step process with the degreaser, acid wash, then paint... We used it straight out of the can with various brushes. Lot of work and a long time to do, but results were great. It doesn't look like factory though in the end, its not as smooth, and the color is different...

[tyler1bo]

I've been researching POR 15 and undercoating for days and it looks amazing after its done..but really seems like a ton of work. Of you guys that have painted, did you disassemble or avoid anything specifically? Can I mess something up mechanically by painting it?