The reason that cracks often start on the edges of the automobile windshield chip repair is because the edges are the structurally weakest area. The frit is on the glass because it keeps the ultraviolet light from the sun away from the polyurethane seal that holds the windshield in the frame. Without the frit, the windshield would quickly start leaking or just pop out of the frame of the car.
Good question. Windshield crack repair equipment varies widely among companies. High quality resins, injections and air removal methods vary from company to company and can affect the finished repair. Quality injection units and high quality resins are as important as the technicians performing the crack repairs. The quality resins create stronger bonds and resist yellowing better than inexpensive resins. Quality injection equipment will remove more air and the injection capabilities provide a higher quality crack repair.
You get a chip on your windshield in less than a second. The most common cause is flying rocks. A crack can happen just as quickly as a chip. You never know when that small little chip is going to turn into a crack that completely hinders your view while you are driving. You may not know this but your windshield provides up to 30 percent of the structural strength of the vehicle. If your windshield is not strong then it affects the entire car. Driving over one bump in the road or a pothole can turn your chip into a crack which will mean you need more than just a repair, you will need professional auto automobile windshield chip repair.
Now you have 3 options. You can pay out of pocket, you can have your insurance company cover the cost, or you can do the repair yourself. The cost out of pocket will vary from $30-$60, depending on the company you chose. Filing with insurance is easy because it is no cost to you, and the auto glass repair company deals with the paperwork. You can also attempt the repair yourself, but if you do not feel comfortable, i would suggest calling a professional. There is a good step by step windshield repair Instructable available, as well as other information online.
The windshield is also called a windscreen. Your car's glass is very similar to that of an aircraft, or a motorcycle's wind screen. Most cars made in modern times are usually fitted with a laminated kind of glass that is very secure and safe because it doesn't shatter into sharp shards unlike ordinary glass from mirrors and bottles. These laminated glass is a kind of treated glass. It is usually made up of a dual curved sheets of glass and a layer made of plastic sandwiched in between so that it will be safer. These are glued into the car's window frame.
There are certain scratches that are advisable to be removed by buffing. If the scratch is too deep however, it is best to use resin to cover up the scratch. The rest of the window will be protected from further damage if the spider cracks are stopped in time.