The Daler Rowney Painting Medium is an all-purpose traditional oil medium expertly formulated from a blend of Linseed Stand Oil, white spirit, and oil of spike lavender. It increases the overall flow and transparency of oil paints while slowing down drying times to give artists more control over complex glazing layers. The versatile mixture dries cleanly into a tough, highly flexible elastic film that prevents your finished canvas work from cracking over time.