Speeds up the drying of oil colour by about 50%, allowing further layers to be applied more quickly.
Thins the colour and increases gloss and transparency.

ARTISAN WATER MIXABLE OIL COLOUR AND MEDIUMS
Artisan Water Mixable Oil Colour has been specifically developed to appear and work just like conventional oil colour, but can be thinned and cleaned up with water.
Hazardous solvents are not necessary for Artisan, and artists can enjoy a safer painting environment, making it ideal for artists who share a workspace, schools, or painting at home.

Winsor & Newton has always been core to the world of art materials. They proudly maintain the pledge of manufacturing The Worlds Finest Artists 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 1800s they actively embrace new ideas, new technologies, and search the world for the best raw materials available.