A whitish haze that appears on the surface of a heavily worked colored pencil drawings. If an artist uses the colored pencil with light pressure, there may be little or no haze as a result. The cloudiness is caused when the wax binder in the pencil led rises to the surface of the artwork. It is most apparent in dark colors but is present to some degree with all colors. Wax bloom can appear overnight or over the course of several days.
Wax bloom can be removed by lightly rubbing the artwork with a paper towel, a clean cloth, or a facial tissue without lotion. A light spray coating of fixative or retouch varnish will prevent bloom from forming on a picture.
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