Poppy oil. Non-yellowing poppy seed oil for oil paints from Czech company Umton. It adds a smooth, buttery texture to the paint, helps maintain the flexibility of the paint film, reducing the risk of cracking. Can be used for glazing and creating thin layers of paint, as it allows for more extended manipulation and blending. Poppy oil dries slightly slower than linseed oil. Because it does not yellow over time, it is suitable mainly for light colours. It can be further diluted with turpentine.