Unlike traditional oil paints, Norma Blue paints can be thinned and cleaned with water, eliminating the need for solvents such as Turpentine and White Spirit. Norma Blue paints are formulated with high-quality vegetable oils and do not contain any animal-derived ingredients or heavy metal pigments, including Cobalt, Cadmium, or Zinc Oxide pigments. Suitable for allergy sufferers as the colours do not contain preservatives. As with genuine oil paint of the finest quality, Norma Blue paints are suitable for all oil painting techniques.