The graining pencil is an artist pencil with soft, thick cores to create a smooth color lay down for superior blending and shading. The pencils can be used to add color or grain lines over raw wood, finished wood, Mohawk Epoxy Sticks and Bondo® Wood Filler. The color of the pencils will not bleed or change when top coated. Recommended on production line touch-up stations since color can be replaced along moving line. Absence of liquid eliminates drying time.