As many of you recall, I started to remove the Rusty Jones undercoating on my car. I started it a few years back and never finished because I don't have access to a lift anymore. I removed what I did get off with mineral spirits and a lot of wiping. This worked ok in the larger areas, but the crud gets into the tight areas also. Any suggestions for a fairly easy removal? I have heard some people say to use Mr. Muscle oven cleaner and then just pressure wash the junk off. Will oven cleaner hurt any rubber that it gets on? here's the stuff:

 

Well if it will hurt the undercoating then there is a good chance that it will hurt your rubber lines.Dont think I would take the chance.Can you get to the areas that your trying to get to with a wire wheel?

 

If you go the oven cleaner route, it will remove the paint and primer,
all the way to bare metal.

As for the rubber lines just cover them with cardboard as you spray.
When your done spray some on a towel and wipe it on where you didn't
spray because of the cardboard.

Or if it's just that the undercoat is hard, heat it with a hair dryer and scrape
it off with a puddy knife.

 

i bealive eastwood makes a undercoating removal spray. i used it on my wheel wells a while back and it worked great and it didnt even hurt the paint that was under the wheel wells.

 

I don't want to use a wire wheel on the car. I'm trying to remove the undercoating because it's a wax like coating that is still soft and gooey. Driving on FL roads kicks up alot of sand and it sticks to the bottom of the car. It makes it difficult to have a show car and a clean undercarriage when it looks like the above pic. The yellowing you see is the beeswax. The passenger side has already been started, but the hard to reach places still have plenty of goo.

 

pick up one of the pneumatic pressurized canisters from harbor freight and use mineral spirits in that with a fine steel wire brush.
Spray some m/s let it work for a few minutes,brush it with the fine wire brush,and repeat.
Yeah,you'll probably have to do this step a few times to get everything, and a lift would make it happen SO much easier.
Good luck man,I've never seen the underside of your car,but I know from the top that thing is absolutely gorgeous!

 

I think I found a product that works good. Gunk Engine Cleaner Gel. I sprayed a small area to see what it would do, let it sit about 10-15 minutes then wiped it with an old towel. It came right off. Based on that, I decided to jack the car up in the driveway, sprayed the entire can all over the areas I couldn't get on the passenger side, waited again and sprayed it off with the hose. I made a REAL BIG mess, but the stuff works. I need to buy probably 5 or 6 more cans and use a pressure washer next time, but I think this will do the job. It comes off real easy and didn't harm the black undercoating from the factory or the paint overspray. My undercarriage migh start looking corret again!

 

yeah man,that sounds messy!

 

I too have under coating I’m removing, it took a few months but I’m almost done.

Here is what worked will for me.

Step1: use a touch to heat up undercoating them use a plastic scraper to get the thick build up off. Care must be taken not to overheat the metal. Also, my car is down to the bare chassis so using a flame around rubber and fuel lines is not a good idea.

Step2: spray on lacquer thinner and cover with kitchen plastic wrap (this keeps it from evaporating, wait a few minutes them remove wrap and wipe

Step3: clean up any left one residue with lacquer thinner.

I have found the lacquer thinner does not effect the factory finish.

 

I'm impressed. I spent a good part of today working on the undercarriage of my car. The Gunk engine degreaser worked great at removing the Beeswax undercoating. I went thru 7 cans of the stuff and got about 90% of the undercoating off. There is still some left on the front and in some nooks and crannes. I don't think I was patient enough and sprayed 6 cans on all at once. I started at the rear and worked my way forward when rinsing it off and some of the stuff started to dry. I guess I'll just have to do more later!!