If the damage appears in the "acute area" or the driver's line of vision, the windshield will need to be replaced.
When replacement is required, the installation time will depend on the adhesive used and weather conditions plus the thoroughness of the installer. Be sure to ask the installer what the amount of time a vehicle needs to sit before it is safe to drive again.
Note: with CLEAR CHOICE, we use only the highest quality glass, primers and sealants available.