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Old 10-24-2019, 11:35 AM
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gto19 gto19 is offline
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Default Removing rubber undercoating

I have a 67 gto with original paint .under the quarter panel on the very bottom someone put some rubber black gunk on pretty thick on the original paint ....probably thirty year old .I can scrape it with my fingernails and it will come off but it’s way to much to scrape with my nails . The paint is also very nice under the coating .

Is there anything I can use to get it off without harming the paint ?
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Old 10-24-2019, 11:50 AM
TAKerry TAKerry is offline
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Maybe try a paint/prep cleaner and a plastic putty knife. If you scratch the paint it should be able to be 'buffed' out a bit.

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Old 10-24-2019, 12:49 PM
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Scott Thelander Scott Thelander is offline
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heat gun and putty knife

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Old 10-24-2019, 01:05 PM
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Thanks guys

I’ve also read to use some diesel fuel . Will that help ?

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Old 10-24-2019, 04:18 PM
TAKerry TAKerry is offline
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It might, but after having a shop burn down I am cautious about anything that is overly volatile, im guessing diesel isn't too bad. Im sure gasoline would wipe that stuff right off!

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Old 10-24-2019, 04:20 PM
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I got it all off with a heat gun (wife’s blow dryer ) diesel and rags . Came out great
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Old 10-24-2019, 05:59 PM
JUDGE3 JUDGE3 is offline
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Use a needle scaler. takes it off quickly and easily, and leaves a nice sandblasted looking surface when done. it will remove the paint though, I see your trying to preserve that. this is great for not preserving paint however.

I just did this last year, I can't imagine using fluids or heat and getting things that messy.

my scaler was 75 bucks from northern. one of the best 75 bucks I've spent, used it on many other areas to get rid of scaley rust, trunk gutter weatherstripping, and many other difficult areas during a restoration.

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Old 10-24-2019, 07:43 PM
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Quote:
Originally Posted by gto19 View Post
I got it all off with a heat gun (wife’s blow dryer ) diesel and rags . Came out great
Just don't tell the wife what you did with her hair dryer!

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Old 10-24-2019, 08:09 PM
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indymanjoe indymanjoe is offline
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dry ice in the floor boards and all the undercoating came off in sheets. well most of it..

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Old 10-24-2019, 09:41 PM
helmerrock helmerrock is offline
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I recommend contractors solvent in a spray bottle. The citrus stuff works good. Takes patience

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Old 10-24-2019, 11:43 PM
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Quote:
Originally Posted by gto19 View Post
I got it all off with a heat gun (wife’s blow dryer ) diesel and rags . Came out great

Smart man! Some of the suggestions here remind me of a Beverly Hillbilly's episode where Jethro used a shotgun to kill flies.

Solvents are usually kinder to the underlying surface. Scrapers and razor blades, not so much.

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Old 10-25-2019, 04:53 PM
JUDGE3 JUDGE3 is offline
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yeh common sense applies with the needle scaler. super easy to use. you hold it at a sharp angle lol, not straight on like a jackhammer. very smooth removal and a nice surface left behind.

trunk weatherstripping always leaves some behind stuck with gunk and the channel is narrow. cleans all that off easily and cleanly.

under the car undercoating comes off fantastic with it. no mess with solvents etc, no heat, big chunks fall off before you even get to em quite often.

multiple other uses to. gasket removal etc etc

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