Water-mixable oil paint
Water-mixable oil paint (also called "water soluble" or "water miscible") is a modern type of oil paint.
Water miscible oil paint can be mixed and used with the same techniques as traditional oil-based paint. When it is still wet, it can be removed from brushes, palettes, and rags with ordinary soap and water. Its water solubility comes from the use of an oil medium in which one end of the molecule has been altered to bind loosely to water molecules, as in a solution.
Another advantage of this type of oil paint is that it dries faster than traditional oils (but slower than acrylics). Also, painters can control the speed of drying with supplementary products from artistic paint suppliers.
- Painting with water soluble or water mixable oils. About Home. 
- Winsor and Newton 2001. The Oil Color Book, a comprehensive guide for painters. Harrow, Middlesex.