In windshield replacement using the partial cutout method, who is correct regarding the old urethane?

In windshield replacement using the partial cutout method, it is important to understand the role of urethane, which is the adhesive used to bond the windshield to the vehicle. Technician B’s position is correct because they likely emphasize that the old urethane must be removed to ensure a proper bond between the new windshield and the vehicle. This removal allows for a clean surface to which the new urethane can adhere effectively, which is crucial for maintaining structural integrity and ensuring a proper seal.

Furthermore, the partial cutout method involves trimming back the urethane, but it also necessitates the complete removal of any old urethane that does not promote a strong bond. Old urethane may degrade over time and can introduce factors that cause leaks or improper fitting of the new windshield.

Understanding these practices helps ensure safety and compliance with industry standards in windshield installation, making it clear that having a thorough approach to dealing with old urethane is essential in the replacement process that Technician B likely advocates.