Sun-Thickened Walnut Oil is made by exposing filtered, cold-pressed walnut oil to sunlight in shallow tanks covered with clear glass and exposed to the atmosphere for a period of three months. No dryers or other additives are used in the making of this oil. The exposure to sunlight thickens it. This walnut oil is naturally bleached to almost water white, so it can be used with palest colors and whites.
Use to make oil colors and thin oil colors. This oil is excellent for making and thinning whites and pale colors.
Use turpentine, spike oil or mineral spirits as the solvent for oil painting mediums and for brush and studio clean up.