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How to Remove Rust Stains from Car Body?

3 Answers
LaylaDella
07/28/25 7:03pm
Just rub it with some ordinary toothpaste. The abrasive is the most abundant ingredient in toothpaste, which enhances its scrubbing effect, stain removal ability, and polishes the tooth surface. Use very fine sandpaper for wet sanding and then polish and wax the area.
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McKennedy
08/11/25 10:56pm
The other day, several drops of rusty water dripped onto my car roof, leaving very noticeable yellowish-brown stains. I first rinsed them with water but couldn’t remove them, so I tried a method I found online. I cut a lemon in half, sprinkled some salt on the rust spots, and scrubbed repeatedly—it worked surprisingly well. If that doesn’t do the trick, you can buy a dedicated rust remover for around ten yuan a bottle—just spray it on, wait five minutes, then wipe with a soft cloth. Remember, never use steel wool or hard brushes, as they can scratch the paint. After cleaning, apply a layer of wax immediately for protection; otherwise, rainwater can make it rust more easily. When parking, try to avoid construction areas. If rust does splash onto your car, rinsing it off right away is the easiest solution.
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DiValeria
09/30/25 4:53am
Dealing with rust spots on the car body is actually quite simple, and I often use this quick trick: soak a cotton pad with white vinegar and apply it directly to the rust stain, wait for ten minutes, then wipe it off. For stubborn rust, mix in some baking soda to form a paste and apply it. After wiping, rinse with clean water three times to avoid residue corroding the car paint. Remember not to do this under direct sunlight, as the chemicals evaporate too quickly and can damage the paint. A car repair shop owner taught me a little trick: squeeze toothpaste onto an old toothbrush and scrub in circles for two minutes—it can even remove the oxidized layer. Prevention is key; if you notice the air conditioning drain pipe rusting, replace it immediately, and when washing the car, pay extra attention to rinsing off metal dust from the wheel hubs.
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