Daler Rowney Artists Oil Colours are professional quality paints, designed for durability and permanence and made using only the very best materials available. For Artists Oils only the best pigments available are used regardless of cost to ensure absolute perfection for the discerning artist. The distinctive buttery consistency of Daler-Rowney Artists Oils derives from the use of sunflower oil and wax, which acts as a plasticiser, helping to prevent even heavy impasto from becoming brittle and cracking over time.