A complete artists oil paint formula, but without coloured pigment. Like coloured oil paint, it stays exactly where and how the artist puts it, keeping every brush stroke down to the finest detail. It can reduce colour to pale tints without the use of white or mediums, and extend the more expensive colours without loss of brilliance or structure. Used with transparent oil colour it allows colours to glow, or when mixed with small quantities of white or opaque colour a pearly luminescence is achieved. Not recommended in thick impasto.