What is the main purpose of the oiling out process in painting?

The oiling out process in painting is primarily used to make dried oil paint more flexible and workable. As oil paint dries, it can create a surface that is too matte or dull, and the colors may appear to be less vibrant than when they were freshly applied. The oiling out technique involves applying a thin layer of oil, typically linseed oil or another medium, over the dried paint. This rehydrates the surface, enhancing its ability to accept additional layers of paint while also improving the overall luminosity and depth of the colors.

By creating a more flexible and workable surface, artists can blend new paint into the existing layers more effectively, allowing for better control over color transitions and texture. This process is essential for artists who wish to continue working on their paintings after some areas have dried, ensuring that the final piece maintains a cohesive appearance and allows for the intended visual effects.

Other options might touch on aspects relevant to painting, yet they do not define the specific function of oiling out. The enhancement of color vibrancy and protection from dust are secondary benefits, while adding texture relates to a different aspect of the artistic process.