What does "wet to the glass" refer to?

The phrase "wet to the glass" specifically refers to the condition when the glass is still tacky at the time of applying urethane during the installation process. This concept is critical in ensuring a proper bond between the urethane adhesive and the glass. A tacky surface provides better adhesion, which is essential for the longevity and security of the windshield or glass installation. This makes it a vital factor during the installation process to achieve an optimal seal.

The other options indicate various issues related to the condition of the glass or its cleanliness, but they do not pertain to the critical timing and condition of the adhesive application in relation to the glass. Understanding "wet to the glass" is important for professionals working in auto glass installation to ensure the effectiveness of their work.