How to Repair Windshield Chips and Cracks?
Whether caused by a stray stone on the road or an unexpected impact, windshield chips and cracks can be a driver’s worst nightmare. Not only are they unsightly, but they also pose safety hazards. However, the good news is that many of these chips and cracks can be repaired, and some can even be fixed with a DIY windshield repair kit. In this guide, we’ll walk you through the process step by step to help you restore your windshield’s integrity and clarity.
Purchasing a Windshield Repair Kit
The first step in your DIY windshield repair journey is to acquire a quality windshield repair kit. These kits typically include epoxy resin, a syringe, curing strips, and other essential tools. Keep in mind that epoxy resin has a shelf life, so check for the expiration date on the kit or ask store employees to ensure it’s fresh.
Preparing the Windshield
Before diving into the repair process, it’s essential to prepare the windshield properly:
Clean the Glass: To ensure proper adhesion during the repair, clean the outside of the windshield where the repair will take place. Avoid spraying glass cleaner directly onto the crack or windshield chips. Instead, pour a small amount of rubbing alcohol onto a microfiber cloth and wipe the surface clean.
Remove Loose Shards: Use a pin or thumbtack to gently remove any loose shards of glass within the chip or crack. This step helps create a smoother surface for the repair.
Repairing the Windshield Chips
Follow these steps carefully to repair the windshield chips:
Adhesive Patch Application:
Peel off the paper backing on the adhesive patch to expose one side of the adhesive. The chip should not be larger than the circular cutout in the middle of the patch. Center the patch over the windshield chips and apply it to the clean, dry, outdoor-facing side of the windshield glass. Peel off the other side of the paper backing and apply the plastic pedestal – a molded piece with a tube angling upward – to the adhesive, lining up the tabs for easy removal.
Resin Mixing and Injection:
Mix the epoxy resin if required by your kit. Fill the pedestal with the liquid resin up to the top and insert the syringe firmly into the pedestal. Slowly pull up on the syringe plunger until it reaches the end of its functional length, creating a vacuum that draws out air bubbles from the chip. Refer to the kit’s instructions for the appropriate waiting time.
Resin Injection:
Hold the pedestal while removing the syringe and then reinsert it. Slowly push the syringe plunger down to force the resin into the chip, stopping as directed in the instructions or where a clip on the syringe prevents further movement. Gently knock on the window to release trapped air bubbles, and if necessary, push the syringe down a little farther to fill any unfilled areas.
Curing Process:
Refer to the kit’s instructions for the recommended curing time. Once the epoxy resin has cured, remove the adhesive patch and pedestal.
Final Resin Application:
Apply a drop or two of resin directly onto the chip/crack. Place the curing strip over the chip/crack at an angle to avoid trapping air bubbles. Hold the strip with your fingers while using a razor blade to squeegee out any air bubbles, and allow it to cure for the recommended time.
Removing the Curing Strip:
Use a sharp razor blade to scrape off the curing strip. Place your finger on top of the chip or crack and break the bond between the strip and the glass by twisting it off to avoid pulling out any resin.
Cleanup:
Use a razor blade to scrape perpendicular to the glass to remove any leftover resin.
Remember that the success of your DIY windshield repair largely depends on following the kit’s instructions and being patient throughout the process. Small chips can often be effectively repaired, but if you have a crack larger than a quarter or one that exceeds three inches in length, it’s time to consult a professional glass service to ensure your safety on the road.
