Lukas Berlin is a high quality oil color made with pure linseed and sunflower oils. These oils act as a perfect binder for the finest pigments used in other Lukas oil colors. Additives have been modified to combine water with oil and not reject it. This makes it possible to mix Lukas Berlin with water and clean it with soap and water; however it dries as a normal waterproof oil color. Use Berlin Oil Colors with these Berlin Water-Mixable Mediums to make your next oil painting a true masterpiece!