Refined, bleached and dewaxed linseed oil and linseed oil fatty acids, Pale Grinders is exceptionally light in color and well-suited for grinding colors. Its high acidity gives it excellent pigment wetting properties for making your own oil paint with dry pigments. High acid value oils make it easier to wet pigments difficult to grind, such as lakes and lamp black, and are especially valuable for grinding reactive pigments, such as lead white.