Grumbacher Linseed Medium for Oil Paintings, 8 Ounce Bottle, Yellow Can be added directly to oil paint to make colors glossy and fluid May also be used as a paint binder ingredient when mixing colors from powdered pigments Made from purified alkali-refined linseed oil Can be pre-diluted with Turpentine, Grumtine, or Pre-tested Odorless Paint Thinner Made in USA