Which combination of oils are commonly used as mediums for oil painting, with linseed being the most common?

• A. Linseed oil only
• B. Walnut oil, almond oil, and safflower oil
• C. Poppy oil, linseed, and stand oil
• D. Beeswax, turpentine, and linseed

Answer: (C)

In oil painting, the medium is created by blending drying oils to control drying time, viscosity, and film quality. Linseed oil is the most common base because it binds pigments well and dries to a flexible film. Adding stand oil, a polymerized form of linseed, thickens the mixture and slows drying, yielding a smoother, more even glaze with a glossy finish. Poppy oil dries more slowly than linseed and yellows less, helping preserve lighter tones and extending working time. Combining these three—linseed as the base, stand oil for smoothness and slower drying, and poppy oil for extra open time and reduced yellowing—gives a versatile, commonly used medium. Be mindful that beeswax and turpentine don’t form a standard oil painting medium: beeswax is used for wax-based textures, while turpentine is a solvent used to thin paint, not as part of the drying-oil medium.