After the ink dries, place brass metal (ink face up) on duct tape, making sure to seal the edges.
|Place Duct Tape Face Down in Acid Mixture. Let stand for 10 to 15 minutes or until acid has etched through the surface of the metal. The mixture will turn a pretty aqua blue while it is etching.|
|After the metal is etched, to neutralize the acid, place tape in Baking Soda Mixture (Water in a Glass Bowl with 2 tablespoons of Baking Soda). Rinse with Water and Remove the Brass Metal from the Duct Tape.|