A matte, opaque preparation of marble dust and polymer emulsion, this medium dries slowly to a very hard surface. It is permanent, non-yellowing, and water resistant when dry. Mix it with any acrylic color, or after dry apply paint to the surface. This paste can be carved and sanded but will crack if applied to a flexible surface. Not for use with oil paints. This package contains 8oz/237mL of Modeling Paste.