M. Graham Walnut Alkyd Oil Medium 4oz

Walnut oil effectively removes color from artists' brushes and is a natural vegetable oil that does not evaporate or remove essential oils from the artists' brushes. The addition of walnut oil to color will slow drying, enhance flow and increase sheen.

Walnut oil does not yellow as much as other oils.  This is especially important in whites, blues, and yellows.  It does dry a bit slower than linseed oil, based on environmental factors and paint film thickness, about 20% slower.

Most artists find that they don’t need to thin our paint but if, for your particular technique, you want the paint more fluid or creamy then add a small amount of walnut oil as in 1 – 3 drops per inch of extruded paint and mix it in.  You can always add more but do it in small amounts until you get the desired consistency.  There is not an exact measurement or rule as every artist and technique is different but we do caution about adding too much as your paint can become too thin and oily.  The addition of walnut oil can slow the drying process.