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How to Wash Cement Off a Car?

3 Answers
Kenny
09/02/25 4:49am
Cement stuck on a car can be removed using the following methods: 1. If the cement has been on the car for less than 12 hours, first rinse the car body with clean water to maintain some moisture, then use car wash liquid and a towel to repeatedly wipe the areas with cement until it is removed. 2. If it has been more than 12 hours and the cement has mostly hardened, you can purchase some acidic water from a pharmacy, wet a brush with it, and apply it to the areas with cement. Since cement is alkaline, the acidic water will gradually dissolve it. Then, rinse with clean water to completely remove the cement. 3. You can also use a specialized cement cleaning agent. These agents are effective at removing cement from cars, but they can be corrosive to both skin and car paint. Therefore, clean quickly, avoid contact with skin, and do not let the cleaning solution stay on the car body for too long.
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DiNoah
09/14/25 7:00am
I've encountered situations where my car got stained with cement several times in my life, and I've accumulated some experience that I'd like to share with everyone. If the cement has just splashed on and hasn't dried yet, immediate action is key. Fill a bucket with water and pour it directly onto the stained area to wash off as much as possible. Avoid using a high-pressure washer at this stage, as the strong force can spread the cement and make things worse. After rinsing, gently wipe the area with a soft cloth—wet cement comes off easily. If the cement has already dried, things get trickier. You'll need to purchase a specialized automotive cement remover, spray it on, and wait about 10 minutes for it to soften the cement. Then, use a nylon brush to lightly scrub—avoid metal brushes to prevent scratching the paint. Finally, rinse with clean water and apply wax to protect the paint. Regularly inspect your car's body and try to avoid muddy areas when passing construction sites—it can save you a lot of trouble.
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VonArabella
10/28/25 7:41am
I've dealt with similar issues before and found that cement stains require different approaches depending on their condition. For fresh cement, simply splashing water to rinse it off works; for dried cement, gentle treatment is needed to avoid damaging the car paint. I recommend using white vinegar or household vinegar—pour some on a towel and apply it to the cement for 10 minutes. The acidity helps soften it, then gently scrub it off with a sponge. If that doesn't work well, try a cement-specific cleaner, but make sure to choose one with a neutral pH value to ensure it's harmless to the paint. Wear rubber gloves for hand protection during the process, and ensure good ventilation to avoid chemical fumes. After cleaning, don't forget to apply wax to prevent rust. Such minor issues can be handled yourself, saving both money and hassle.
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