Odorless Classic Medium — This is a modified stand oil-based medium for painters who prefer slower drying. It’s ideal for thinning paint while maintaining a rich, luminous finish when dry, lends greater control for detail work, and offers longer manipulation time for over-painting, glazing, and wet-in-wet techniques. It can be used throughout a long painting process or for slow glazing on top of fast underpainting. Do not use fast-drying mediums over the top of Classic Medium, as the tension between the paint layers caused by the different drying times may be strong enough to crack. Odorless Classic Medium generates very little vapor, resulting in healthier and more pleasant painting sessions.