Michael Harding Oleo Resin Medium will add new levels of depth, gloss & lustre to your oil colours. Michael Harding mediums are unique formulations based on ingredients dating back to the 13th century, using natural materials such as resins, waxes & balsams. This one uses pale Canada Balsam with Indonesian dammar resin & viscous linseed stand oil, chosen for its elasticity & stability. Specially designed to complement Michael Harding’s oil colours, Michael Harding Oleo Resin Medium contains no drying agents. UK shipping by road only. Not available for International or Northern Ireland delivery.