As you know that all rocks chips and cracks can easily repaired. Technicians those who repair windshield their main goal is to provide safe driving to the person who drives his auto. Another goal is to prevent further cracking and to reduce glare that distracts the driver and creates safety issues.
Windshield repair is low-priced compared to windshield replacement. Repair eradicates troubles linked with replacement such as leaking, wind whistle or windshield failure due to airbag deployment. This can and always has been a real problem when windshields are not installed to original equipment manufacturer Specifications by trained windshield replacement technicians.
Windshield chip and crack repair technicians need training to perform quality repairs that look good and make the windshield safe again by returning structural integrity. Some windshield repairs look bad and should be scrutinized as possible windshield failure or cracking could occur and require replacement of the windshield. Bad repairs are common when improper techniques are used.
Anyone can put a drop of resin on a chipped windshield and call it repaired. Improper repairs such as dropping resin, will almost always fail. Proper technique requires removal of moisture and air that entered the chip/crack upon impact or over time. Removal of moisture and air requires that the chip/crack be put in a vacuum to remove air and moisture, this requires specialized windshield repair equipment such as injectors capable of applying a strong vacuum for this purpose and able to inject windshield resin properly for a complete repair.
Proper windshield repair surprise takes a little time. First the injector/vacuum unit must be properly placed over the chip/crack. By placing the unit in vacuum mode the moisture and air can be removed from the chip/crack. Setup procedures and vacuum stages take about 10 minutes each unless lots of moisture remains in the crack where upon requiring the heating of the windshield glass to the proper temperature to vaporize the moisture. This allows the vacuum to remove any remaining water vapor. (This can take up to 20 minutes.)