Jacquard Pearl Ex Powder Pigments, Assorted Metallic Colors, Set of 6 Add luminous color to paintings, drawings, collages and pottery with these Jacquard Pearl Powder Pigments. Incorporate into oil, acrylics, gouache, varnish or any other viscous medium; can also be used dry and then sealed. Can be fired in a kiln to 600 degrees Fahrenheit. Non-toxic. 0.75 ounce bottle. Ideal for paintings, collages or pottery Mix with acrylic, oil or varnish for a metallic finish Perfect for art class use or household crafts Conforms to ASTM D-4236Made from powdered mica, these rust and tarnish proof pigments are highly colorfast, stable and suitable for interior, exterior and archival applications