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How to Repair a Windshield Chip or Crack: Easy Restoration Job for Novices

Jan, 2018
How to Repair a Windshield Chip or Crack

A cracked or chipped windshield is one of the many things that can be frustrating for car owners. It may appear small, but if it is not given attention as soon as possible, it will grow bigger and can cause the windshield to shatter. With this, at the first sight of the problem, you should act immediately. Otherwise, it can lead to costlier repairs.

For many people, going to the nearest glass shop or mechanic is a viable option. Nonetheless, this can be too costly. That being said, you should learn how to repair a windshield chip or crack. The good news is that it is actually an easy task. You can purchase a DIY repair kit, which is easy on the wallet. No special skills or technical expertise is needed for the task.

What You Will Need to Follow this Tutorial

To successfully complete this task, you will need only two things:

  • A windshield repair kit
  • Clean towel

Step-by-Step Guide on How to Repair a Windshield Chip or Crack

Below are the specific steps that are sure to be easy for anyone to follow. Before you proceed, watch this short video below:

1. Prepare the Kit

A chipped and cracked windshield is a common problem, which is why many companies are offering DIY kits that you can use at home. There is no need for a professional intervention by a mechanic as the steps are pretty much simple.

The kit that will be purchased in this guide contains an instruction booklet, suction cup mount, razor blade, resin, resin pump, and curing strips. The materials will depend on what is included in the repair kit that you will be using.

2. Park your Car

As you prepare to work, find a shaded area where you can fix the problem. Later on, you will have to remove the car from that place and transfer to in a location where the windshield can be directly hit by the heat of the sun.

3. Start Repairing the Damage

Again, the instructions will be different based on the kit that you have. The steps mentioned in this post are specific to those that you can see from the video above.

To start off, take out the razor blade from its cover. Use the razor to clean the area surrounding the crack. All that you have to do is to lay it flat on the surface and move it front to back. Apply enough pressure to clean the area. After this, with the use of the end of the razor, clean out any debris on the crack.

When you are done cleaning the problem area, the next thing that needs to be done is to affix the suction cup mount. The middle part should fall exactly on where the crack is. Press hard in such a way that the suction cups will attach. However, avoid applying too much pressure as the damaged glass is already fragile and you might end up cracking it.

Once the suction cup is in position, prepare the plunger. Screw it in and see to it that the rubber surface on the end will meet exactly on the part of the glass with chip or crack. Remove the resin and open the top part. Put six drops of resin in the tube. Screw the plunger so that resin will be pushed in. Tap around the crack to get rid of air and to let the resin fill the chip.

If there is still space of air that you can see from the crack, all that you have to do is to add more drops of resin.

4. Remove the Suction Cup

Once you are done filling the crack with resin, you have to remove the suction cup. Spin the plunger counterclockwise and pull it out. Clean any excess resin with a towel since the plunger is reusable. Remove the suction cups.

5. Use the Curing Strip

At this point, you have to add one drop of resin exactly on where the crack is. Place a curing strip on the top. Use your razor and run it lightly on the top of the curing strip, which is important to push out any excess air. Park the car in a place where it will be hit by the sun and wait for about five to ten minutes.

Remove the strip and use a razor to take out any excess resin. Wipe it with a clean towel. By now, you have successfully repaired the problem at a low cost!

Pro Tips

Repair a Windshield Chip

Via: https://www.youtube.com/watch?v=0mHCsCRnQsE

Here are other important things that you also have to keep in mind:

  • If the damage is on the edge of the windshield, this is one indication that a replacement is necessary instead of a repair. This will make the structure of the windshield weaker, which is why a simple repair may no longer be sufficient.
  • The size of the crack or chip is also important to decide whether you will repair or replace. If the length is shorter than six inches, it will still be repairable. On the other hand, if it is longer, it will be wiser to consult with a professional first.
  • Before you start working, see to it that the area where the resin will be applied is completely dry and clean. If it is wet or if there is a dust, the resin will not cling strongly to the surface and hence, you will not successfully treat the problem area.
  • To avoid having windshield chips and cracks, proper repair and maintenance are important. One thing you have to do is to close the door gently as too much pressure can speed up the wear of the glass. To add, you should avoid using ammonia-based glass cleaners.
  • Regular inspection of the wiper is also important to be sure that there is no dirt or debris that can possibly scratch the glass and cause visible damage at the surface. Replace the wiper regularly to be sure that they are working perfectly.


In sum, knowing how to repair a windshield chip or crack can save you a lot of money! A basic repair kit will be affordable, and hence, it is a better alternative compared to a trip to your local mechanic or glass shop. Nonetheless, keep in mind that this solution will work best only if the area that is affected is small. Otherwise, you will need to ask help from the pros.

Did you enjoy reading this guide? Is there any tip that you would like to add on how to repair a broken windshield? Do not hesitate to write a comment below.