Because each color contains the maximum pigment consistent with good handling qualities, it achieves the optimum tinting strength when reduced with white.

Artists' Oil Colours remain soft and wet for several days, allowing rework. All colors dry to the touch in 2–12 days.

Winsor & Newton has developed permanent alternatives for the less durable traditional colors, without compromising the handling properties of oil colors. Of the 120 colors in the range, 119 are now classified as "permanent for artists' use," which aids the longevity of paintings.