Eli5: Why is it so hard to scrape ice off my windshield?

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Eli5: Why is it so hard to scrape ice off my windshield?

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Likely your windshield is dirty and you haven’t used a hydrophobic coating like RainX or Aquapel.

If you clean it really well and add a coating, you’ll have an easier time. Similarly, you can coat your driver and passenger windows/mirrors.

You can also use something called gummi pflege on the inside rubber of your doors to repel moisture (ice) and allow your doors to open easier in the winter.

You’re using the wrong tool. Use a brass edged scraper. The plastics ones don’t work very well for ice.

Windshields aren’t smooth at the microscopic level, there are tiny pits and cracks in it. You park your warm car, ice forms but against the warm glass a layer of it melts and fills the cracks, then as the car cools the water expands as it re-freezes. The ice gets jammed into the glass.