Tom Norton Walnut Darkening Medium is not only an ink but can also be used an additive to darken Tom Norton's original walnut drawing ink when a drawing needs that extra “punch”. Some artists will add black India ink to darken the color of our original Walnut Drawing Ink. This will work but you will sacrifice the unique watercolor characteristics of the ink and lose the ability to lift color or lighten areas. Adding black India ink also loses the tonality of the beautiful warm walnut color.

Walnut Darkening Medium is very heavily pigmented and made with the same binder as the original so it can be mixed with Tom Norton Drawing Ink without changing its working properties. It can also be used straight from the bottle for a very intense dark brown. Most artists work with it side by side with the original, dipping and double dipping between bottles for a range of light and dark browns.