How to Keep a Windshield Crack from Spreading

Hi there! It’s Kimberly from A Night Owl and I’m so excited to be back here contributing to Lil Luna this year! Last year was a blast and I was able to share a number of fun projects with you! This year I’m going to be bringing you some easy and HELPFUL tips – because we could all use a little help, right? You know, those things that were passed down to you from your mother, like how to clean baseboards like a pro (that was my main job growing up). Haha! Well today we’re starting off our tips series with:  How to Keep a Windshield Crack from Spreading!

How to keep a windshield crack from spreading! Brilliant!

Now I live in Phoenix, AZ. And in Phoenix we have miles and miles and miles of roads and highways! That means that we’re on the road a lot and THAT means that there are plenty of opportunities for chips and cracks in your windshield. You know that feeling when the vehicle in front of you kicks up a rock and it hits your windshield? And you cringe and look around desperately for signs of a crack? Yes – that feeling. Stinks, doesn’t it? Well today I’m going to share with you a little tried and true method on how to to keep those chips and cracks from spreading – with something that you likely already own! How to keep a windshield crack from spreading   Clear nail polish. What? YES! It’s not just for maintaining your manicure anymore! Clear nail polish can fill the nooks and crannies of your small windshield chips and cracks and when it dries, helps to seal and protect it from the cold and elements that cause further cracking! First, you’ll want to clean the damaged area of your windshield with dish soap and warm water. How to keep a windshield crack from spreading Once that is dry, simply apply a thin layer of clear nail polish to the damaged area and let dry. How to keep a windshield crack from spreading
Easy as that! And now you know how to keep a windshield crack from spreading! Now I don’t recommend this for large cracks or damaged areas; as always you need to practice discretion and have your windshield replace in accordance with your state laws. But this little tip can be very helpful for the small chips and cracks that companies would charge you to repair. And this is FREE!

Well I hope that helps YOU out the next time you hear that rock hit your windshield! Stay tuned for MORE tips this year!Kimberly - Crafts Contributor


Thanks Kimberly! I had never even thought to do this before but will definitely do this from here on out. :)

For more great tips be sure to check out:

25+ MUST-SEE Cleaning Tips for around the house! { }

25+ Cleaning Tips

Be sure to go to A Night Owl for more fun projects from Kimberly, and

for more information about her please go HERE.


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  1. 1

    Wow that is amazing. I am going to pin that!


  2. 2

    Unfortunately in CA with construction everywhere ALWAYS, there are more cracks and chips than I’d like. Thanks for the tip Kimberly!
    Mique recently posted..the Party Bunch, Week 15My Profile

  3. 4

    I had never heard of this! Too cool. I have a little sports car that is always getting dinged by pebbles and such. this is a really helpful tip! Who knew? LOL! Thank you for the post!
    The Funster recently posted..LeapPad from LeapFrog ReviewMy Profile

  4. 5

    Ugg I wish I would have seen this 2 weeks ago! Had a small chip and coukdn’t get it in until the weekend ans the next day the crack went all the way across my window (damn polar vortex!)

  5. 6

    Great tip! We got a chip just the other day!
    Amy Huntley recently posted..The Party Bunch–Linky PartyMy Profile

  6. 7

    But check with your insurance first. Ours will pay (with no charge to us or increase) to fix a chip since it’s much cheaper to fix that than the inevitable crack.

  7. 8

    I live in Florida,if my truck is sifting in the hot sun what is going to happen to the polish? Do you do the inside and out? Thanks

  8. 9

    As a volunteer firefighter, I would be concerned about doing this. Nail Polish is a temporary fix at best . It may prevent the chip from spreading but it is not a bonding agent. If there is an accident the windshield would spider. Even the minor fender bender May result in having to replace the entire windshield .

  9. 10

    I would not recommend this;
    1) chips/cracks are problems because of air in between the layers of windshield glass
    – temperature changes can cause the trapped air to expand and contract even with a superficial coating of nail polish; because of the angle of windshields and the nature of broken glass, the air will not be vacuumed out because nail polished is dropped on top of it
    2) Avoid washing just prior to any repair (though I wouldn’t qualify this as a repair); any moisture in the damage during “repair” will cause problems removing air/with any repair material’s chemical reaction or drying and it can be impossible to tell if the INSIDE is dry unless you leave it out to dry for a long time (out of direct sun; can cause drastic heating; see temperature note above).
    I would always recommend an actual repair by a trained technician (with warranty); some can be quite cheap or have coupons if you do your research

  10. 11

    I have been repairing windshields for over 18 years now and your advice in your article makes it extremely difficult for correct this procedure and complete a professional rock chip or crack repair? First of all there is two plates of glass sandwiched between pvc plastic. When a rock strikes a the glass it causes a pocket of air. If you don’t remove the air the thermal conditions will push the damaged area and the crack will run across the entire windshield! Not good advice ans you should study up on how a windshield is constructed. Please leave it to a professional glass technician to repair.

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