Winsor & Newton Artist's professional Fixative can be used to preserve works for the long term, or momentarily to prevent smudges while working. It can be applied to works of charcoal, pastel, pencil and chalk immediately. While the fixative is durable and protects the surface of drawings, it can also be applied while working, as a medium. Fixatives also enable the top of the surface to be continually worked by the artist. This transparent fixative will not affect the color of pastel, although it may darken the color tone, yet at the same time it improves the adhesion of particles to the surface and lightfastness.