What does the term "wet edge" refer to in paint application?

The term "wet edge" refers to the area of paint that is still wet, which is crucial for achieving a seamless and uniform finish during the application process. When painting, maintaining a wet edge allows the painter to blend new paint into the previously applied paint for an even coat without visible lines or laps. This is especially important when using techniques such as rolling or brushing, as it helps prevent issues like streaking or uneven texture that can arise if the paint begins to dry before the entire area is covered. The concept of the wet edge emphasizes the importance of timing and technique in the application, ensuring a high-quality finished surface.