Vista PatinaVista patinas are a two part patina combined in one solution. The base patina is a blend of chemicals that produce a beautiful green on bronze, brass, and copper, or an exquisite rust on iron & steel. Added to this base solution are different colored oxides which will blend with the first reaction to form a marbled patina. For example, using the vista black on bronze would produce a green and black patina and a rust and black patina on iron.