Undercoating & Floor Pan Tar????, How to remove this crap? |
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Undercoating & Floor Pan Tar????, How to remove this crap? |
Mueller |
Mar 27 2003, 03:53 AM
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#1
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
I've been using brake cleaner to remove the undercoating, but it is taking forever due to how thick this cr@p is. Is there another way to remove it?
At over 2 bucks a can, this is going to be an expensive job just to remove this stuff. |
Blynes |
Mar 27 2003, 06:08 AM
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#2
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Member Group: Members Posts: 68 Joined: 19-January 03 From: Savannah, GA Member No.: 169 |
Try a heat gun and a putty knife.
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seanery |
Mar 27 2003, 08:35 AM
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#3
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,841 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
No experience with the stuff but heard others talking about aircraft stripper.
Anyone try it? |
john rogers |
Mar 27 2003, 10:23 AM
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#4
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Senior Member Group: Members Posts: 1,525 Joined: 4-March 03 From: Chula Vista CA Member No.: 391 |
Why are you doing this??? If it is to save weight, I am guessing that the net gain will never ever come close to the effort you have to expend to get all the sealer/undercoating off. Having said that, in the places where I needed to do weld repairs I just used either a 1 inch wide wood chisel or a putty knife and scrapped if the stuff was loose as it was in most areas. Good luck.
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Zeke |
Mar 27 2003, 10:28 AM
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#5
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Never left, but not right.... Group: Members Posts: 381 Joined: 26-January 03 From: Long Beach CA Member No.: 197 Region Association: None |
Scaping gets a lot of it, but the contours are hard to do with a lflat blade. You can modify a chisel on the grinder. I also used stropper pads and wire brushes mounted in a drill motor. I sanded as well. I really didn't get every last bit off, but it si fairly smooth under there. Good enough for paint, IMO.
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jonwatts |
Mar 27 2003, 11:50 AM
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#6
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no rules, just wrong Group: Benefactors Posts: 2,321 Joined: 13-January 03 From: San Jose, CA Member No.: 141 |
I've used the heat gun (or propane) and putty knife method. If the undercoating is already dry and brittle then just the putty knife can work well. Whatever this doesn't get will come off with the brake cleaner.
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Brad Roberts |
Mar 27 2003, 01:08 PM
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#7
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Mike,
Buy the brake cleaner by the cases. They end up a little over a dollar a can. I try not to buy tubs that have undercoating for this exact reason. There has to be some magic spray on crap that removes this stuff. Call Ziebart. They should know. B |
brant |
Mar 27 2003, 01:44 PM
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#8
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914 Wizard Group: Members Posts: 11,613 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
Mike,
If you find anything let the board know.. I would kill for this info.. I have gone through 2 cases so far.. and have a ways to go yet... I've also been using the putty knife share any secrets brant |
seanery |
Mar 27 2003, 02:21 PM
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#9
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,841 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
seriously, aircraft stripper is supposed to be the shit. The 356 guys use this for just about everything.
I haven't needed to do any stripping....well, I have but didn't do it yet. Anyone here tried it? |
ChrisReale |
Mar 27 2003, 03:23 PM
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#10
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
QUOTE(seanery @ Mar 27 2003, 12:21 PM) Anyone here tried it? I use the stuff to wash my face and brush my teeth. Keeps me cleeeen :finger2: My undercoating was so old and brittle, that I could just chip it off with a flat head screwdriver. Korijo's undercoating was "better" so we used a propane torch to heat it up and then used a putty knife and stripped it off |
brant |
Mar 27 2003, 03:41 PM
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#11
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914 Wizard Group: Members Posts: 11,613 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
seanery,
I've used a product sold as air craft stripper... It is a full stripping product. Sure it will take off undercoating.. but it also takes off the factory paint and primer... I don't think this is mike muellers intention... Also, chemical strippers are kinda dangerous in that they need to be fully neutrallized before you repaint or they can cause problems down the road.. sort of like an acid dip..... I know I certainly don't want to remove my factory paint from the wheel wells and undercarriage.. On my car I bought an industrial heat gun and found it worked great on the interior undercoater, but still didn't phase the undercarriage without getting so hot as to bubble the factory paint also... anybody else have any secrets? brant |
TimT |
Mar 27 2003, 05:44 PM
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#12
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
Aircraft stripper works great, unless someone has applied an asphalt based under coating, it make a big mess with that.
I ended up using an angle grinder, with a wire wheel to get the crap off. and BTW it saves a ton of weight, I took off about 40 lbs of undercoating on my 911 here is a pic of the right front wheel well after I primed it with zinc then shot some white paint on it. |
tracks914 |
Mar 27 2003, 07:36 PM
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#13
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Canadian Member Group: Benefactors Posts: 2,083 Joined: 15-January 03 From: Timmins, Ontario, Canada Member No.: 153 Region Association: None |
Castrol Super Clean will break it down but I had the most luck with a pressure washer with HOT water going through it. I just did it a few weeks ago. The pressure and hot water got 90% of it off. Some I had to use the solvent . (IMG:style_emoticons/default/mueba.gif) (IMG:style_emoticons/default/mueba.gif)
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914werke |
Mar 27 2003, 07:53 PM
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#14
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"I got blisters on me fingers" Group: Members Posts: 10,004 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
What about the sound deadening pads on the inside floorpans?
Any one with any special tricks here? I heard somewhere that Dry Ice will essentially freeze the stuff to the point it just cracks off ? Rich |
Brad Roberts |
Mar 27 2003, 08:00 PM
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#15
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Rich,
we use a 12$ heat gun and a puddy knife from Harbor freight. Then clean the area up with brake cleaner. The heat is how they put it down... it comes up easy. B |
Mar 28 2003, 12:39 PM
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#16
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Group: Posts: 0 Joined: -- Member No.: 0 |
harbor freight is my hero! I got my heat gun there too. After using it, my friend borrowed it and said "someone stole it". (IMG:style_emoticons/default/finger.gif)
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SirAndy |
Mar 28 2003, 12:50 PM
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#17
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Resident German Group: Admin Posts: 41,606 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Brad Roberts @ Mar 27 2003, 06:00 PM) we use a 12$ heat gun and a puddy knife from Harbor freight. Then clean the area up with brake cleaner. The heat is how they put it down... it comes up easy. yepp, works like a charme. make sure you get at least a dust mask or something, the tar-mat stuff will evaporate some not so nice stuff when heated up. plus, the brake cleaner will give you a nice buzz ... i have some nice before/after pictures here: http://www.sirandy.com/projects/20020520.asp |
kuch |
Mar 28 2003, 11:12 PM
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#18
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Newbie Group: Members Posts: 4 Joined: 10-January 03 From: Edmonton ALberta CANADA Member No.: 130 |
I tried the aviation stripper and it made a big mess. It was hard to apply and it took off the paint as well so I would not recommend it.
The method I found that worked the best…. and I should know as I have removed all the undercoating from one end of my car to the other is: - Use a paint scrapper to remove it off of the flat areas. - Followed by lacquer thinners and paper towels. - Then apply good old Por-15 for rust protection. (IMG:style_emoticons/default/biggrin.gif) |
jimkelly |
Nov 14 2012, 05:02 PM
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#19
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
ditto - heat gun and putty knife - worked fast and easy.
Attached image(s) |
Rand |
Nov 14 2012, 05:05 PM
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#20
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Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
Tried and tested. Almost a decade of proven history right here.
Don't fall for the dry ice banana in the tail pipe - This thread was almost started before Eddie did that. |
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