Wiper blades can cause a lot of windshield damage. Everyone has seen vehicles with wiper scratches all across the windshield and that may even be why you are visiting this page. American Auto Glass can repair rock chips, but it is difficult to remove scratches from auto glass. If the scratch is deep enough to catch your fingernail, you need to replace the windshield. To remove a lite scratch from a windshield you need a buff pad and jeweler’s rouge. This will only work for lite scratches that are small, and even then it still takes a lot of time and work.
There are really two ways to address light scratches in glass. The easiest is to fill the scratches with an acrylic scratch remover, which is applied as a liquid and dries hard and transparent, hiding the damage by filling the scratches chemically. For deeper scratches, the most popular fix is buffing the glass with cerium oxide, a ceramic and metal polish with very low abrasivenessit’s widely used in jewelry. Add water to the fine powder and make a slurry . then cover the damaged areas with the paste. Using a drill with a polishing wheel attached, apply firm pressure to slowly grind the surface smooth. Mark the location of the scratch on the other side of the glass so you can keep track of where you should be working. It may take a while, but keep the paste moist and add more cerium oxide as needed, and the result will be a smooth, scratch-free surface.
A large scratch is a weak point in a windshield and can easily crack at that point. It is best to get it replaced because the scratch will damage your wiper blades.
How to Avoid Nasty Glass Scratches
Keep your windshield clean. Wiper blade scratches are often caused by gritty dirt and sap buildup on the windshield. It takes a lot of rain or wiper fluid to get rid of the buildup so it is better to hand wash the windshield first, then run the wipers. You should also regularly clean rubber wiper blades.
Do not run the wipers on a dry windshield. Who hasn’t accidentally turned on the wipers when it isn’t raining? This is probably the number #1 cause of wiper scratches. But that goes back to the previous point… if you keep your windshield clean, you reduce the risk of scratches if you accidentally turn on the wipers.
Keep your wiper fluid reservoir filled and working properly. If your wiper fluid barely sprays, you may get scratches when trying to clean the windshield. If the reservoir is full, then check the spray nozzles and clean them if they are clogged. If that doesn’t work, you may need a new washer fluid pump.
Inspect wipers regularly. If they are worn out, replace them. It is cheaper to replace wiper blades than a windshield! Also check the clips to make sure they are locked in place. Loose clips can cause scratches. On standard wipers, loose or missing clips allow the blade to twist and bend which causes the metal part of the blade to scratch the glass.
Windshield Wiper Blades and Rock Chips
You should replace your windshield wiper blades if you used them while you had a rock chip.
Rock chips and cracks create a rough surface that damages the rubber blade. Even the slightest nick in the edge of the blade affects performance. If you notice streaking or the blade is not running smoothly across the glass, it is time for a replacement.
Sun, heat, cold, road debris, lack of use, and windshield damage all cause rubber blades to deteriorate. For this reason, most wiper blades should be replaced every six months.