Rublev Oil Paint Medium Walnut Oil - 8 fl oz is a premium, studio-grade drying oil for artists who want a clean, low-odour medium for making and modifying oil paint. This walnut oil is cold-pressed from freshly dried English walnuts (Juglans regia) grown in California and then lightly refined, producing a clear, pale yellow oil that is odorless and easy to work with.

Walnut oil is a thin oil that increases paint flow and helps create smoother, more fluid brushwork. Because it yellows less than linseed oil (though more than safflower oil), it is especially useful for whites and pale colours, glazing, and any palette where colour clarity matters. It also dries more slowly than linseed, typically setting in around 4 to 5 days, giving you more open time for blending and soft transitions.

Use Rublev Walnut Oil to make oil colours, extend paint, or thin oil paint without adding solvents. It can also be used as part of traditional studio mixes, including oil and beeswax combinations for certain wood finishes (commonly 1:2 oil to beeswax). For solvent-based mediums and clean-up, turpentine, spike oil, or mineral spirits may be used separately.

Key features

• Cold-pressed California English walnut oil (Juglans regia), lightly refined

• Clear, pale yellow, low odour (odorless to slightly nutty)

• Makes paint more fluid and workable

• Lower yellowing than linseed, ideal for whites and pale colours

• Slower drying for longer blending time (about 4-5 days)

• Size: 8 fl oz

Safety note
Rags and paper towels contaminated with drying oils can pose a spontaneous combustion risk. Store oil-soaked materials in an air-tight metal container or keep them water-dampened until disposal.