Impasto Medium - Pigment-free oil colour: its consistency and body make it suitable for painting heavy coats. Mixed with colours very rich in pigments, it reduces costs without altering their consistency. It dries quickly and does not yellow.
Walnut Oil - Valuable oil of extreme purity and lightfastness. It does not yellow and dries slowly. Similar to safflower oil, it is particularly suited for white and very light colours.