What is an advantage of using glazing putty?

Using glazing putty provides a distinct advantage in its ability to fill minor nicks and paint chips effectively. This quality is crucial in the painting and refinishing process, as it creates a smooth surface for paint application. When imperfections such as chips or scratches are present on the surface being painted, they can disrupt the appearance and adhesion of the paint. Glazing putty is designed to be applied to these small imperfections, allowing for a seamless finish once the surface is painted. This not only enhances the overall aesthetic but also helps ensure better paint adhesion and longevity.

In contrast, other potential advantages indicated in the answer choices do not accurately reflect the primary reason for using glazing putty. While it may influence paint cost somewhat indirectly, it is not its primary function. The drying time of glazing putty can vary, and it may not always dry faster than other types of putty. Additionally, while glazing putty contributes to surface preparation, it does not inherently strengthen the existing paint on its own.