Removing old tar sound-deadener

Does anyone have an easy way to remove that black tar that is smeared on the ceiling of my cab? I think it was originally used to adhear insulation to the inside of the roof. Is this crap toxic...as in may contain asbestos? thanks

 

Dust mask and a sharp stuff putty knife,,,at least that's the way I did it. HRP

 

Yup use a good sharp putty knife to get the majority... after that use lacquer thinner and heavy duty shop rags to clean up the rest... works really good.

 

I doubt it has asbestos in it?

 

Just tar based ,be careful of any crap left laying about because it burns very easily.No asbestos ever.

 

give it a little love on the other side with a heat gun before you get started-you don't have to get the metal hot...just warm enough you wouldn't want to spend too much time with your hand on it. (say more than 10 seconds.) it will come off MUCH easier.

 

http://buy1.snapon.com/catalog/item...group_ID=13078&store=snapon-store&dir=catalog

Not at all cheap, but it eats away any undercoating very quickly, and leaves nothing but shiny metal (assuming thats whats under the undercoating), with no residue left. Also, the wheel doesnt clog up at all.

Besides, its a great all around stripping/cleaning tool. Awesome for cleaning areas you are about to weld, but cant get a die grinder/DA/etc, without the mess or need of a media blaster.

 

dont use heat. it makes it gummy.

put dry ice on it and it almost flakes off with out a putty knife.


i do this on seam sealer and under coating when i build race cars. it is the fastest way. i have tried every way said above.

 

if it's old and dry , take an air chisel and make about a 1-1/2 to 2" wide paddle for it , make sure your round all the edges so it won't dig into the metal. turn the air pressure down to about 20 PSI and chisel it off....most will flake off from the vibration

i thought it was crazy too the first time i heard it , but it works great....i took all the undercoat off the underside of a shoebox ford in about 2 hours

 

This is what Gene Winfield taught me. A little heat on the outside of the door on a merc so we could get the undercoating off the inside of the door and fill some trim holes with the gas welder.

 

I like mineral spirits for a wipe down after the heavy stuff is removed.
Cuts it just as well and doesn't flash off as quick.

 

I used a HF heat gun on the inside of my cab and then scraped with a putty knife. It worked good.

 

paint stripper, softens it up, then scrape it off with a putty knife. worked for me.

 

I've had success using one of those cheapo halogen lamps, on the backside of the spot i'm working (adjust so its about 4" away). It just adds enough heat to break the bonding without making it all gummy. That way a wide scraper takes off large pieces and leaves little residue.

 

You beat me to it, works well!

 

Yer supposed to get the Ol' Fart ta do it- that's what DaTinman did. I know, 'cause I'm the Ol' Fart...

 

Another vote for the air chisel with pressure turned down, then just use lacquer thinner for whatever didn't come off with the chisel.

 

done it with a needle scaler also

 

Tman's old boss Gene told me he waits for a nice cold day (shouldn't be too hard to find in Iola this month) and gets behind it with a putty knife and the stuff comes off like breaking glass because its so brittle. Never tried it myself, so I can't vouch for it. Tman, do you remember seeing Gene do this at A & A? Otherwise 36 3-Windows method sounds like a good one to me, maybe the cold would help that too.

 

$1 cans of oven cleaner from dollar store work great in seams and tight spots.