Cleaning the under side of Body

[67CamNKC]

Just getting ready to get the 67 camaro on the rotisserie. How are you cleaning the under side of the body, floor pans etc.

Not sure if rolling outside on the rotisserie and power washing? 4" wire wheels?

I bought a gallon of POR-15 for the interior floor pans, but not sure I want the underside of the car shiny. DP90 or truck bed coating might be a better option? Any comments on what to coat the bottom of the unibody with?

Shannon

[MarkM66]

What's on the bottom now?

[GetMore]

Power washing should do a good job of taking off most of the gunk. A steam cleaner would be even better.
If you want to protect against rust you could use POR15 and then cover with undercoating or some other paint.

[67CamNKC]

I haven't started on the bottom yet, but it looks grimey. We'll see how thick it is once it's on the rack.

[TnBlkC230WZ]

Yes, roll it out and wash it if you can. Then wire wheel and lots of 80 grit. I would chemically treat the whole underside then use POR-15, EastWood Rust Encapsolator, or something similar. I know EastWood has a few colors and I think POR does too. Most of these can be easily top coated when done.

Also, 3M makes stripping pads for your grinder. They are pricey to use, but make very quick work of stripping and removing rust.

[jackfrost]

what do you mean by "chemically treat" ??

[zuess4u]

what do you mean by "chemically treat" ??

Go to the Eastwood web site to see their under coating remover.

We are using a product called Lizard Skin. Its being applied inside and out. Its a sound deadner and heat resitant.....supposed to be very good stuff....couldnt tell you if thats true or not....but we will see.

[Second Skin Rep]

I like to use a foaming degreaser and a pressure washer.
We do that prior to adding out noise and vibration coating to the underside of most floor pans.

ANT
www.secondskinaudio.com

[Second Skin Rep]

Go to the Eastwood web site to see their under coating remover.

We are using a product called Lizard Skin. Its being applied inside and out. Its a sound deadner and heat resitant.....supposed to be very good stuff....couldnt tell you if thats true or not....but we will see.

Depends on which one you use.

Their sound control formula is good for stucture borne noise, but not for heat.
Their ceramic forumla is good for heat and some airborne noise (not much though)

Overall Lizard skin is a great product (my second or 3rd choice for obvious reasons)

ANT
www.secondskinaudio.com

[zman1969]

Easy Off oven cleaner - works great

[NovaMan]

I used a high grade concentrate truck wash called Super Blue, its about 12.00 gallon and should be mixed up to 200:1 but I used full strength and pressure cleaned, after soaking for 10 min. It ate everything off, there are pictures in the project updates I did mine over last weekend.

novaman

[mhotel1]

did my 69 on a rotisserie...get ready for a lot of work! Getting the bottom completely shiney metal took maybe 40 hours.... Mr. muscle brand oven cleaner worked the best on the undercoating(you can only buy it at a janitor supply place, no retail)...coat with oven cleaner then pressure wash..did this 3 or 4 times...then a wire wheel on an angel grinder and propane torch worked the best...after shiney clean, sprayed it with POR 15 2 coats, then 2 coats of POR Chassis Black...looked pretty good...i figure i am covering the inside with a bunch of sound deadner so did not worry too much about spray on stuff on the bottom...who knows though

[jackfrost]

so here's a question - what if the original undercoating is still in good shape? i'm not concerned about a show quality underside, so I'm wondering about just cleaning off the dirt, scuff it up and repaint? or should i make sure all of it is gone?