Oil paint can be messy. If cleanup is put off, it gets harder and harder (and can even ruin your paint brushes).

There’s no trade secret here—mineral spirits are a universal solvent for oil-based paint. They emit less odor than paint thinner and are considered more effective as a paint brush cleaner.

Following is a transcript of the video. Narrator: Making a Series 7 kolinsky sable watercolor brush isn't easy. The largest-size brush can take almost a week and a half to make. You can pick up a ...