How to Clean Cement Stuck on a Car?
2 Answers
Cement stuck on a car can be cleaned using the following methods: 1. If it's been less than 12 hours: First, wet and soak the area with water, then use car wash soap and a towel to gently clean it. 2. If it's been more than 12 hours: By this time, the cement will have hardened. You can purchase some acidic solution from a pharmacy, dip a brush in it, and apply it to the cement. The cement will dissolve in the acidic liquid, and then you can rinse it off with water. 3. Using gasoline: Pour gasoline onto the cement, wait for it to soften slightly, and then remove the cement by hand (suitable for large areas). 4. Using a hairdryer: Heat the area with the cement using a hairdryer. The difference in thermal expansion between cement and plastic will usually cause the cement to fall off automatically. 5. Using white vinegar: Spray white vinegar onto the cement using a spray bottle, wait for 3-5 minutes, and then gently scrape it off with a hard card. The cement will come off in chunks. Afterward, wash the area where the vinegar was sprayed with car wash soap to ensure no residue remains.
I just encountered this issue, and there's definitely some skill involved in cleaning cement stains off a car yourself. Once cement dries, it becomes extremely hard, and scraping it directly can damage the paint, so you need to soften it first. I mix white vinegar or lemon juice with water in a spray bottle, spray it on the cement, cover it with a damp cloth, and wait a few hours for the acidic liquid to penetrate and soften the cement. After that, I gently scrape it off with a plastic scraper or an old credit card—avoid using metal tools to prevent scratching the surface. If any stains remain, applying toothpaste and rubbing it in works well. After cleaning, remember to rinse with clean water and then apply wax to protect the paint. Preventing cement from splashing onto the car is also important—park far from construction sites, and regular car washes can reduce the risk. In short, patience is key—never rush by using harsh chemicals, as repairing damaged paint is even more troublesome.
