No heat or firing required.
Color Magic Paint - White
.5 oz (15 ml) bottle with brush in cap. Color Magic paints can be applied on metal, glass and other surfaces. Brush onto surfaces such as glass, mirror, sandblasted designs, plaster, leather, wood, pottery, porcelain, shell, bone, beads, etc. Can also be used on metals including zinc, brass, copper, silver and tin. Dries in minutes to a durable fade-proof sheen. Requires no heat or firing.