Water Miscible Oils are similar to regular oil colors, but they contain a modified oil binder that can be cleaned up with water. Once dry, the paint layer resists water just as conventional oil colors do, with a drying time similar to that of traditional oils. Clean-up is easier, requiring none of the solvents which can have harmful side effects. Water miscible oils can be mixed with conventional oil colors and mediums, but the resulting mixture may lose its water-mixable characteristics. They can also be thinned with water, but doing so will tend to make the paint film duller and will cause a color shift from wet to dry. Use of water miscible mediums is recommended.