Does Using Toothpaste to Clean a Car Harm the Glass?

[VonGraham]

Using toothpaste to clean a car can harm the glass. Toothpaste is typically composed of many substances with abrasive properties, such as calcium hydrogen phosphate, calcium carbonate, silicon dioxide, calcium pyrophosphate, and aluminum hydroxide. The nature of these substances means that toothpaste has a scrubbing function. If toothpaste is used to clean glass, under light, one can see numerous fine scratches. Methods to clean car glass properly: Fill a spray bottle with car glass cleaner and evenly spray it on the interior glass; if concerned that the sprayed cleaner might affect other areas inside the car, cover them with a cloth or plastic beforehand; use a clean, soft towel to wipe the glass. Precautions for car glass maintenance include: Thoroughly remove dirt from the car glass; turn off the defrosting and heating function after 5 to 10 minutes to prevent the rear window glass from cracking; within two days after replacing the glass, you can wash the car and try to drive on flat roads; when the wiper does not fit tightly with the glass, it can easily cause scratches and affect functionality, so regular maintenance or replacement is necessary; regularly replace the rubber strips to prevent leaks due to aging.