Winsor and Newton Artisan Water Mixable Oil 37ml - Raw Umber (Series 1) (WNO554) Artisan Water Mixable Oil Colour is a genuine oil colour made from linseed & sunflower. It's been specifically developed to appear & work just like conventional oil colour. The depth of colour, buttery consistency, lightfastness, opacity/transparency, performance & drying times of Artisan allow artists to use it for all oil colour techniques. The key difference between Artisan Water Mixable Oil Colour & conventional oils is their ability to mix with water. After painting, brushes can be cleaned using only soap & water. Artisan is popular with oil painters who don't like turpentine or wish to cut down the use of solvents. As a result, painting with Artisan is less hazardous, which can be useful in schools or enclosed spaces. FREE shipping on orders over $175, and large shipping refunds on multiple purchases. Just email us with your order number and we will see what we can do. We aim to ship every order received before 02:00 NZT on the same day and most orders will be with you inside of 12 days, although some may take up to 15 working days. Free Shipping only on orders of 4kg or less.