Under which conditions should a full cut be performed?

A full cut should be performed when the urethane is well bonded because it indicates that the adhesive bond between the glass and the frame of the vehicle is strong enough. This strong bond is crucial for ensuring that the glass can be safely and effectively removed without causing damage to the surrounding structure or the glass itself. When the urethane is properly adhered, a full cut allows for a clean separation, which minimizes the risk of any remaining adhesive that could interfere with the installation of new glass.

In other scenarios, such as when adhesive is damaged, executing a full cut could exacerbate existing issues and lead to complications during replacement. Similarly, if there is significant rust, the integrity of the vehicle's structure might be compromised, making a full cut a risky choice as it could lead to further deterioration or instability. Lastly, if the procedure is incorrect, it might indicate that the conditions do not warrant a full cut, as alternative methods might be more appropriate for ensuring the glass is replaced while preserving the vehicle's integrity. Hence, the correct choice hinges on the quality of the urethane bond, making it essential for the proper execution of the procedure.