What to Do When Cement Stains on the Car Cannot Be Washed Off?

[OCharles]

The methods to deal with cement stains on the car that cannot be washed off are: 1. Wet and soak the area with water, then use car wash soap and a towel to slowly clean it bit by bit; 2. Use hydrochloric acid to wash the area—apply it with a wet brush to the cement, which will dissolve in the acidic liquid and can then be rinsed off with water; 3. Pour gasoline onto the cement, wait for the paint to soften slightly, and then manually remove the cement; 4. Use a hair dryer to heat the cement-stained area—due to the different thermal expansion rates of cement and plastic, the cement will usually fall off automatically; 5. Spray white vinegar onto the cement using a spray bottle, wait for 3 to 5 minutes, then gently scrape the cement with a bank card, followed by washing the vinegar-sprayed paint surface multiple times with car wash soap.