A semi-gloss, quick drying, non-yellowing medium that retains crisp textures and brushstrokes without any visible leveling. When dry, it forms a flexible film that can be varnished in the normal way. The only medium that safely thickens oil colour. Winsor & Newton has always been core to the world of art materials. They proudly maintain the pledge of manufacturing “The World’s Finest Artist’s Materials”. This is as true now as it was when the company was founded in 1832, and they take their relationship with the artist very seriously. Winsor & Newton have built their reputation on the quality and reliability of their products, combined with continual product development, improvement and innovation. However, while keeping true to the principles laid down by William Winsor and Henry Newton in the 1800’s they actively embrace new ideas, new technologies, and search the world for the best raw materials available.