Since 1996 we have been Providing quality Windshield Repair, Long cracks and rock chip repair to thousands of customers. The resin and tools used here, absolutely the best, with adhesion like no other and excellent optical clarity. Multiple award winning Glass Weld products.. Here's how it works: Using the Pro-vac injection system vacuuming trapped air out of the break is the first step. Probe flexing the rays while adding pressure (injecting the glass resin) to completely fill the break to the tips of each ray, while Maintaining correct temperature on the glass. (glass expands if the surface temperature is to high) and will cause immediate damage. Repairs must be done in the shade, also the sun UV rays will cause premature curing. Glass repair has do be done right the FIRST time, you can not "re-repair" a break. Next step: Cure the repair under pressure with a 365nm UV light. Resin will shrink as it cures and is absolutely vital to cure the repair while maintaining injection pressure. Inspect and identify surface cracks that can spread before and during the repair process, unlike subsurface cracks a different technique is applied to insure against any further propagation, this being the number one reason a repair will fail. Last step: apply a hard surface filler after completion of the injection process, then polish the break, this brings the impact area back to a smooth surface. IMPORTANT: If your windshield has had water from rain, car wash etc.. the break has to be dried with a moisture evaporator. (Vast majority of Techs DO NOT dry out the damage). Hopefully this information will help you make the right decision in choosing us to meet your Windshield Repair needs. Feel confident knowing you will have the highest quality repair, with a lifetime money back guarantee!