A very thick, matte, opaque preparation of marble dust and polymer emulsion used to build heavy textures on rigid surface. This product handles like clay and dries to a very hard stone-like surface. Can be mixed with acrylic color or over-painted when dry. Makes an excellent substrate for acrylic paint, oil paint, oil pastel, oil bars, watercolor, graphite, or dry pastel. Great for sculptural applications and may be sanded, carved, or drilled when dry. For use on rigid supports.