P/c Artists Pastels Ultramarine Faber Castell Polychromos Artists Pastel Superior pigments of unsurpassed light-fastness Intense colour, ideal for detailed and wide area work Polychromos artists' pastel crayons can be ground into a fine pigment powder using sandpaper, and then mixed with oil, resin or an acrylic medium to form paint Drawings made with Polychromos pastels can be wiped, or treated with a paintbrush dipped in liquid paraffin to give fine colour transitions