Oil Pastels

An oil pastel is a painting and drawing medium formed into a stick which consists of pigment mixed with a binder  mixture of non-drying oil and wax, in contrast to other  pastel  sticks which are made with a  gum or  methyl cellulose binder, and in contrast to wax crayons which are made without oil. The surface of an oil pastel painting is less powdery than one made from gum pastels, but more difficult to protect with a fixative.