Undercoat removal

Mopar Body and Trim

  1. circlepilot

    circlepilot FABO Gold Member FABO Gold Member

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    Removing 55 year old undercoat from your restoration is, to say the least, something that can be time consuming and just "sucks canal water." I've watched videos and read articles about it. I've used an air scraper, (fair) heat (fair) paint stripper (nope) and even oven cleaner to try and expedite its removal. I would like to share something I discovered by doing something "just for the hell of it." (of course I may not have discovered something that has already been discussed on the forum, if so, I haven't seen it.) I "generously" sprayed (wet) my fender wells with "Goo Gone Automotive Spray Gel," just to see what would happen. It was late in the evening so I decided to let it stay on over night. The next day I was blown away about how easy it was to remove the under coating. I was so impressed I had to make this little video to share. (Let me add...I did a final clean up with my pressure washer, mainly to get rid of the residue) https://youtu.be/oKbSTv_IFM4
    Norm
    1965 Barracuda restoration.

    goo gone.jpg

    clean fender well.jpg
     
    Last edited: Apr 30, 2020
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    • Dartsun

      Dartsun Member

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      That looks like it works great I just did my undercoating with a heat gun and it wasn’t fun lol.
       
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      • 67/6barracuda

        67/6barracuda Well-Known Member

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        Hell yeah I’m going to try it. I got so much of that under coat on my car it’s 1/4 to 1/2” thick in spots. Unreal, problem is that it’s all cracked and now trapping water and cause problems.
         
      • circlepilot

        circlepilot FABO Gold Member FABO Gold Member

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        If it's real thick, just make sure you soak it down well and let it sit. You may get a layer off at first, then do it again. I had one side that was that way. I did both of my rear fender wells in little over two hours, (after letting it soak over night) that includes a final cleaning with my pressure washer. BTW, I did my front fender wells the old way, I worked on them on and off for a week and still wound up finishing them with the Goo Gone.
        Norm.
         
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        • Troub

          Troub 67 Dart 270, 225 slant six

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          Wish I had known that a few months ago! Removed the undercoating on my 67 Dart with an angle grinder and wire brush attachment. I just kept spraying it with water mainly to keep the dirt/dust factor down but found that wetting it made it easier to remove. I’ve never been dirtier in my entire life.
           
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          • pishta

            pishta I know I'm right....

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            Goo Gone is good shit. Dollar Tree sells it in little bottles..The power of Citrus oil and D-limone.
             
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            • circlepilot

              circlepilot FABO Gold Member FABO Gold Member

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              I'm not sure if there is a difference, but I have a small bottle of Goo Gone, it doesn't have a label that says "automotive gel" like my big spray bottle does.
               
            • pishta

              pishta I know I'm right....

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              No gel at .99, just the little liquid bottle but I bet you can thicken with corn starch.
               
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              • sireland67

                sireland67 Well-Known Member

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                I have always found a propane torch makes it fall off in big chunks, really easy.
                 
              • halifaxhops

                halifaxhops It's going to get stupid around here! FABO Gold Member

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                I just used oven cleaner then pressure washed it off, down to bare metal!
                 
              • circlepilot

                circlepilot FABO Gold Member FABO Gold Member

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                I couldn't get the oven cleaner ('Easy-off.") to work on my under coat. I let it stay on over night, didn't even soften the stuff on my car. Maybe the undercoat you were dealing with, must of been a different compound. The stuff on my car was probably "Ziebart."
                 
              • dartfreak75

                dartfreak75 Restore it, Dont part it! FABO Gold Member

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                Wow that's amazing thanks for sharing. I gotta clean off some masking tape that has been on my door panels for 16+ years you can imagine how its stuck on there (my stupid fault) I'm gonna try that. I'm gonna try and save them even tho there not perfect I can always upgrade them later.
                 
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                • halfafish

                  halfafish Damn those rabbits, and their holes! FABO Gold Member

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                  Update, with all the running gear out of the car from trans mount backwards I decided to go to war with the undercoat. I got a needle scaler and it is a fantastic tool. Fast and easy, it peels that shit off like a hot knife through butter. Well worth the price!
                   
                • Dartwizer

                  Dartwizer Member FABO Gold Member

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                  The Goo Gone does work,I tried it a few days ago.
                  I'll try the needle scaler also.
                   
                • straightlinespeed

                  straightlinespeed Sometimes I pretend to be normal Staff Member FABO Gold Member

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                  So who wants to come remove it from the inside of my trunk?? Yep, prior owner thought it was a good idea to spray the entire inside of the trunk area with the spray can stuff.. I havent even began to try to remove it. Just so many different curved surfaces, nooks and crannies to get it out of.:mad::mad::mad:
                   
                • halifaxhops

                  halifaxhops It's going to get stupid around here! FABO Gold Member

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                  OUCH, TIME TO PUT THE SHAG CARPET IN!

                  [​IMG]
                   
                • straightlinespeed

                  straightlinespeed Sometimes I pretend to be normal Staff Member FABO Gold Member

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                  Ohhhhh Purple!!!! That would look good in Grimace
                   
                • halifaxhops

                  halifaxhops It's going to get stupid around here! FABO Gold Member

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                  I LOOK OUT FOR YOU MAN!
                   
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                  • halifaxhops

                    halifaxhops It's going to get stupid around here! FABO Gold Member

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                    But remember the black light psycadelic poster on the seat back area for the full effect!:rofl:
                     
                  • straightlinespeed

                    straightlinespeed Sometimes I pretend to be normal Staff Member FABO Gold Member

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                    Snag a couple from your garage wall and send them my way:lol:
                     
                  • halfafish

                    halfafish Damn those rabbits, and their holes! FABO Gold Member

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                    I would ALMOST trade you headaches. But not quite. My PO spray bombed everything - and I do mean everything - under the hood and in the trunk a solid flat black. It looks like shit and will take forever to get under control.
                     
                  • halifaxhops

                    halifaxhops It's going to get stupid around here! FABO Gold Member

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                    Pick one
                    71cN04nSmeL._AC_SL1280_.jpg posters-good-buds-stick-together-black-light-poster-005191-12847941681205_1024x1024@2x.jpg posters-vertigo-drop-black-light-poster-007714-12848209362997_1024x1024@2x.jpg s-l640.jpg blacklight3.jpg 73fba1b4f700eb45fabf28a374bd74f3.jpg

                    Sorry all just bad weed!
                     
                  • straightlinespeed

                    straightlinespeed Sometimes I pretend to be normal Staff Member FABO Gold Member

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