Opaque matte structure paste. Ideal for 3D effects. The paste can be used on its own to build up texture. For use on all surfaces such as canvas, wood, leather, or any other non-oily absorbent surface. When added to acrylic paint it thickens the consistency and produces brush stroke retention in paintings. Water resistant when dry. ACMI Certified. Conforms to ASTM D4236; Safe for educational use.