text: A Guide To Windshield Repair - Building Your Dream Home
  Does your windshield have a rock chip? Does it seem like the chip gets bigger every time you look at it? There is a very good chance that even the smallest rock chip on your auto glass, when left alone, will grow. Obviously, auto windshields are specially designed and reinforced to resist this, but you also have to do your part to stop chips from becoming an issue. That is, you can use special auto glass repair kits that fill in the chip and prevent it from becoming bigger. Doing this simple project is not only a matter of safety, but it could end up saving your money and greatly lengthen than the lifespan of your windshield. This article explains how to use windshield repair kits.
  Many people don't realize it that most windshields are laminated. The outer layer is a thin and flexible laminate over the glass. This is why, when you see a broken windshield, it is often held together by the laminate and it doesn't shatter into a million pieces. In fact, many glass chips are very minor because the laminate protects the glass. However, if your chip is growing out to a diameter greater than 1", these kits probably aren't going to do very much. But, as long as your chips are just small spider webs, bullseyes, or tiny star-shaped holes, you should be able to effectively repair them.
  Using Windshield Kits
  Glass rock chip repair kits include every thing you need for the project. Most importantly, there is a special epoxy that comes in a unique syringe. The syringe has a special suction cup on the tip that enables you to apply the epoxy while it creates an airtight seal over the chip. This way, it dries to be perfectly flat and in line with the shape and surface of the glass. It also ensures that the epoxy goes deep inside glass to fill the chip in completely.
  Since every system is a little bit different, it is important that you follow the instructions, even if you had done it before. That is, there might be a different order of operation that you're not used to you if you have previously done this project with a different brand or product. For example, many products are sun activated. That is, once the epoxy is applied to the windshield it will dry quicker and harder if it is under direct sunlight. Basically, it is best to apply these products on a sunny day.