Used by artists from the Renaissance, Walnut Oil
offers greater freedom of application than poppyseed oil and reduces
the yellowing and streaking associated with linseed oil. This slow
drying oil allows longer open time.
Walnut Alkyd medium
combines the advantages of Walnut Oil, enhanced flow and reduction of
yellowing, with the accelerated and uniform drying time of alkyd.
are the mediums you should use with M. Graham oil colors.