best to get undercoating off

[Turbo280Z]

whats the best thing to use to get the undercoating off if u dont have access to a bead/sand blaster?

[78280z]

I've heard that a heating torch and a steel spatula (for scraping) work pretty well. Make sure ventilation is adequate of course...

[Turbo280Z]

well its sittin in the driveway so that should be enough air. ill give it a whirl lol

[stevechode]

agreed with 78 280z. ive scraped it off the front aprons and about 1/4 way undermeath. you deff neat a heat gun tho, its a pain without it. if u plan to scrape the sound deadener off the floors dont use a heat gun tho. use some sort of stiff scraper and a hammer

[getZ]

I used map gas and a putty knife, then went over the last remaining goo with acetone.

[AK-Z]

2 ways

 

Heat or cold.

 

cold, you get some dry ice and freeze it and chip at it. Easier imo and less messy.

[Netrix]

I've seen a post on here of someone using a chemical, let me see if i can find it

[Nelsonian]

I am at the same point with turbo280z needing to remove the undercoating. I searched and searched for others suggestions and input and ended up trying a few mentioned methods on a small portion of the car. I started with heating torch and putty knife, then tryed "Mr. Muscle" oven cleaner and then finally the fastest method, using a SnapOn "Crud Thug" stripper tool. I still have to remove the majority of old undercoating but feel more than confident the crud thug will get me there much faster than other methods. The down side to using this is its initial cost. That's where ebay luckily saved me a fortune. There are some tight spots where I will resort to using the torch/scraper but for the most part its Crud Thug time. Best of luck with your removal job.

[MONZTER]

I got some liquid nitrogen from the welding store. Put it on and the metal and tar shrink at a different rate. It literally fall off. Did it on mine to all of the factory coating on the inside of the car.

[MoNkEyT88]

I used a propane torch and a putty knife.

 

I'd like to try the liquid nitrogen thing, because torching it is a stinky messy mess.

[EMWHYR0HEN]

I did the torch and putty knife method. It worked but it was messy, stunk, and my throat hurt after.

 

I would go cold if I were you.

[zgeezer]

I did the torch and putty knife method. It worked but it was messy, stunk, and my throat hurt after.

 

I would go cold if I were you.

 

If you are talking about removing the sound deadener inside the car, cold is the way to go. I've used dry ice in a thick sock: lay the ice on the "tar" for about 30 seconds and tap it with a hammer or drive a steel putty knife between it and the steel floor. Using dry ice is quick. I removed all the tar in the interior of my Z in a little over an hour, even counting time for a beer.

 

Bottled nitrogen would be even faster. Cold tar is brittle and will shatter when hit with a hammer.

 

The cheapest if you can see Northern Lights is to park it outside for a night or two, then go to work on it before the sun rises.

 

g

[Netrix]

Here it is its called UnderGone by Eastwood:

http://www.eastwoodco.com/jump.jsp?itemID=1684&itemType=PRODUCT

 

Here is a kit that includes putty knifes, heat gun and the aerosol cans of UnderGone:

http://www.eastwoodco.com/shopping/product/detailmain.jsp?itemID=21456&itemType=PRODUCT&RS=1&keyword=undercoating

[Turbo280Z]

well i have almost all of it out of the interior already. i used a hammer and fat chisle in the summer time. (in vegas).

 

my friend works at air gas (welding supply store) so i might just do the liquid nitrogen. hes been wanting to mess with some so this seems like a good time to do it.

 

it wont hurt the metal at all will it?

[Guest colinthemann]

Last summer I replaced the fuel tank on my 280z, and I found that gasoline dissolved the undercoating. This was entirely by accident, but it turns the undercoating into goo that can just be wiped off. As expensive as gas is that might not be your cheapest option, but it might work.

[tightywhitey185]

CRUD THUG DUDE!It an expensive tool but its crazy.I spent about a week every day after work just torching and scraping laying on concrete then my old man said hey boy try this.Crud thug works much better.