Transparent Enamel Assortment For Metals ENAMEL ASSORTMENT - For use with copper, gold, silver, steel or metal clay. FOR METAL ART - Add a splash of color to your metal art. OPAQUE COLORS - Bright opaque colors add brilliance to any project. FINE POWDER - Approximately 6 gm per color. COLORFUL - Fuse with a rainbow of colors, apply with applicator bottle.