IT IS A GIVEN I should not have to say that you should go in dressed nicely with some sort automobile windshield chip repair of logo on your shirt or hat that shows you are serious and you are a professional.
I have seen this procedure first hand and walked away shaking my head wondering why anyone would want to do this to their windshield. Plus, if you haven't had a new windshield in a while it becomes pitted and is very difficult to see in the sun light or at night. If you have picked up a crack, more than likely it's been hit many times already and is probably pitted.
The good thing about fix auto glass is that the glass company will come to you to do the work. There is no reason why your plans for the weekend need to change. They can come to your work while you are inside doing your job. Before you know it, a new windshield will be installed and you can be on your way. This is the easiest way to make sure that the job is done without having to wait around.
The secret to doing a lot of repairs is knowing where and how to contact people. Mostly it is a function of letting them know you there and able to do the repair. Problem is most people wake up thinking about how to find someone who needs windshield repair.
Jolt your car or windows. Try to avoid slamming doors or shutting doors with the windows all the way up. Creating extra pressure inside the vehicle in this way can cause the crack to spread.
To further strengthen the windshield, the auto glass is subjected to a tempering phase. The sheet is heated to a temperature of 1565 degrees Fahrenheit or 850 degrees Celsius. It is then subjected to blasts of cold air. A piece of PVB plastic is sandwiched between two pieces of auto glass. The sandwich is heated inside an autoclave. This bonds the components together tightly and removes any trapped air.