Like windshields, car windows are highly susceptible to nicks, scratches, and hairline cracks. It can be tedious to repair a car window yourself, but it’s easy enough with the right gear and a few hours. Read on to learn everything you’ll need to do to get your windshield back into tiptop shape.

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Apply resurfacing resin.

  1. Use a generous amount of the second resin to maintain the repair. Use a cellophane patch, and cover the area that you just applied resurfacing resin to. Expose to direct sunlight or UV lamp, and allow the area to dry. After it is dry, remove the cellophane patch and gently scrape off the excess resurfacing resin with a razor blade to make it level with the surrounding glass to complete the car window hairline crack repair.[5]

Community Q&A

  • Question
    How do I fix an improper repair on a windshield crack?
    Community Answer
    Community Answer
    If bigger than a quarter in diameter you're supposed to take it to a shop for replacement. I've tried the crack repair stuff before on longer cracks, and used some at each end to hopefully stop the spreading. It didn't last too long for me.
  • Question
    My car windshield got a crack on my way to work by a truck loaded with sand and stones; the stone fell on my window and it cracked. How can I remove it (an easier and cheaper way)?
    Community Answer
    Community Answer
    If it's bigger than a quarter, you have to get it replaced, because the "filler" stuff doesn't usually work, and it usually spreads too. If smaller in diameter than a quarter, there are some kits at auto parts stores, Amazon, even Walmart had one a while back. It takes a try or two to get it right if you've never done these before, but you can do it.
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Warnings

  • If the crack on your window is longer than 3 inches (7.6 cm) then a windshield repair kit will likely not work for you. In this case, it is best to contact a professional.
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  • Professional resin injection methods usually provide better results than a do-it-yourself kit.
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Things You'll Need

  • Bridge windshield repair kit
  • Cellophane patch (if not included with repair kit)
  • UV lamp (optional)
  • Razor blade
  • Glass cleaner

About This Article

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, volunteer authors worked to edit and improve it over time. This article has been viewed 151,132 times.
82 votes - 74%
Co-authors: 8
Updated: October 26, 2022
Views: 151,132
Categories: Car Window Repairs
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