How to Repair Auto Glass Damage

Any rock or piece of road debris can cause damage if it strikes your windshield at highway speeds. Even when your car is parked, a lawn mower or weed trimmer can launch a small rock at your side window causing a chip or crack. Fortunately, repair kits exist to seal the damage and prevent the crack from spreading.

Instructions

1

Assess the damage. Home fixes require a small damage area, 1 inch or less. If the damage you are attempting to repair is larger, consult a professional auto glass shop. Don't wait. The more time passes, the more likely dirt is to contaminate the glass. Road grit and even dust prevents the repair material from adhering to the glass.

2

Purchase a self repair kit. You can find windshield repair kits at your local auto parts store or through an on-line retailer. Because the repair compound requires daylight to set up, make sure repairs are performed during daylight.

3

Clean the damaged area with glass cleaner. Make sure the surface is completely dry before attempting the repair.

4

Use a small nail or leather punch to punch poke a hole in the center of the adhesive disc that comes with the repair kit. Remove the adhesive backing from one side of the disc. Turn the side with the exposed adhesive towards the glass. Place the disc over the chipped glass centering the hole in the middle of the damaged area.

5

Remove the adhesive backing from the other side, and attach the syringe pedestal. Remove the protective cap from the end of the syringe and push it into the pedestal, twisting the syringe until it seats completely.

6

Pull the syringe plunger up to remove the air from the damaged area under the disc. Hold for a moment, then push the plunger slowly down to apply the resin onto the damaged surface. Repeat 10 times. From the inside of the car, inspect repair for air bubbles. Repeat resin application if needed. Clean up excess resin compound with a damp cloth. Allow 30 minutes to dry. Pull the syringe out of the pedestal and cut off the disc and pedestal using a utility knife.