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Join Date: Sep 2007
Location: Wheaton, IL (Chicago 'burbs)
Posts: 3,141
Need advice on how to get cement off the paint

One of the puddles I drove through recently must have had cement in it, it's now dried in spots on the leading edge of the left rear flare. Fortunately most of it is on the vinyl graphics on the flare, but a bit is on the paint. I'm guessing the paint has a good coat of wax so hardly anything stuck, but still need to clean the paint and the vinyl. Any detail experts have advice?

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Ed
'86 911 Coupe (endless 3.6 transplant finally done!)
'14 Jeep Grand Cherokee 3.0 Turbodiesel (yes they make one)
'97 BMW 528i (the sensible car, bought new)
'12 Vintage/Millenium 23' v-nose enclosed trailer
Old 07-17-2021, 01:43 PM
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Join Date: Apr 2011
Location: Greensboro, NC area
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I have tried a new high-quality rectangular craft blade and was able to remove quite a few wo any damage to paint. In my case, most just popped out one I had the leading edge of the blade barely pushed under the conc chip.
Old 07-17-2021, 02:11 PM
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diluted muriatic acid mixed with water or white vinegar will dissolve calcium an should not damage paint
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1973 911S (since new) RS MFI specs
1991 C2 Turbo
Old 07-17-2021, 02:13 PM
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Very simple. I had a cement truck drop gallons of cement in front of my house that splattered on my hood of 2 cars. The solution to clean off was Vinegar. Soak a sponge or rag and let it sit on each spot of cement. It will dissolve the cement. Good luck!
Old 07-17-2021, 02:31 PM
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Wow, grerat quick replies, thanks. Seems like white vinegar is the solution to try first.
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Ed
'86 911 Coupe (endless 3.6 transplant finally done!)
'14 Jeep Grand Cherokee 3.0 Turbodiesel (yes they make one)
'97 BMW 528i (the sensible car, bought new)
'12 Vintage/Millenium 23' v-nose enclosed trailer
Old 07-17-2021, 02:39 PM
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Try lime away if vinegar doesn't work. Use muriatic acid as an absolute last resort.

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Old 07-17-2021, 06:16 PM
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