Tom Norton Walnut Drawing Ink is made with artist grade pigments and it is both lightfast and acid free.
This ink acts more like a watercolor because it is always water-soluble. This can be seen through its great layering and lifting properties. You can layer to darken your tones or add water to lighten them, and you can also use a wet brush to lift color.
It can also be used alongside a wide variety of other types of art such as watercolour painting, calligraphy, wood painting and many more.