Cobra Auxiliary Mediums are produced for use with Cobra Artist Watermixable Oil Colour. They can be used to alter and enhance the working properties and characteristics of the colour, much like the use of conventional Oil mediums in working with oil, yet like Cobra colour they are also watermixable. This Glazing Medium can be used give increased flow and make Cobra Artist colour more transparent. This medium is perfect for glazing techniques in building up thin, flat transparent layers. Available in 75ml jar. UK shipping by road only. Not available for International or Northern Ireland delivery.