This C Roberson Impasto Medium will double oil paints for achieving impasto effects, when the paint is layered thick and textured. Made with stand oil, dammar resin, turpentine and bleached beeswax to a recipe created in the 19th century, it is crack-resistant and dries to a matt finish. Mixed one to one with your oil paint, C Roberson Impasto Medium retains the strength of colour while allowing you to build and define, showing brush or palette strokes. UK shipping by road only. Not available for International or Northern Ireland delivery.