Grumbacher Linseed Oil Medium for MAX Water-Mixable Oil Paints, 2-1/2 Oz. Jar, #5922 Linseed oil for Grumbacher MAX Water-Mixable Oil Paints Increases gloss, improves flow and water-mixability of MAX Water Mixable Oil Paints and mixtures of MAX colors with conventional oils Compatible with all known conventional oil painting materials, but will not make them water-mixable For use with only Grumbacher MAX Water-Mixable oil paints; Not recommended for use with any other brand of water-mixable oil paints Made in USA