ng. Some are turning to citrus based solvents, which are less toxic in some 
ways, but still not to be taken lightly.</p>
<p>Although few seem to realize this, solvents are not actually necessary for 
cleanup even with traditional oil paint. Oil can be used instead. Some people 
use cheap vegetable oil for cleaning their brushes, although it would concern me 
that this is not a drying oil, and any oil left in the brush might interfere 
with the paint. I use walnut oil, which is the same oil my paints 