Michael Harding Oleo Resin Medium will add new levels of depth, gloss and 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 and balsams. This one uses pale Canada Balsam with Indonesian dammar resin and viscous linseed stand oil, chosen for its elasticity and 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.