Auto glass is specially tempered glass made to be shatter and impact resistant. This does not mean that auto glass cannot be broken, but it does require a much stronger force than normal glass. When auto glass does finally fail, it is made to break into a spidery web that resists shattering in order to maximize safety.
In automobile accidents auto glass is often damaged and needs to be replaced, but this isn’t the only instance where replacement is required. Gravel kicked up on the freeway can result in a chip or small vein in the windshield. Over time vibration can cause the vein to grow. In some states driving with damaged auto glass is a ticketable offense.
You may be surprised at how easy it is to have your windshield replaced. Auto glass specialists do this routinely and will usually come to your home or place of business. The wipers, molding and cowl are removed, and the damaged windshield is lifted out. Old adhesive may need to be cleaned away. Once clean, new adhesive is applied to a groove that holds the windshield in place, and the new windshield is installed. The cowl, molding and wipers are replaced and the entire job is done in about an hour. You may be advised not to drive the vehicle for an hour to give the adhesive ample time to set.
If your auto glass only has a small nick or vein, an auto glass specialists might be able to treat the spot to resist further spreading for a small fee. This can save you money in the long run, and the repair usually takes less than 30 minutes. Commonly, the nick or vein is thoroughly cleaned and dried. Next, resin is injected under pressure and held in place with a material such as Mylar. An ultraviolet light is applied to cure the resin, then the Mylar and extra resin are scraped away. Finally the area is polished.
Depending on circumstances, an auto glass specialists might charge an insurance company directly, rather than a customer. Many auto glass specialists are available 24 hours a day to accommodate accidents around the clock. You can also call for an inspection and quote. You might find that a repair is all you need to keep a small nick from turning into a big problem down the road.