Copper Tite Vehicle #3 is a crystal-clear, durable air-dry lacquer that provides superior tarnish protection and remarkable resistance to salt-air atmosphere as well as superior resistance to ultra-violet light. Formulated without harmful organic compounds, it has special ingredients that chemically bond to the copper or the silver layer of a mirror. It can be used in different ways as a mirror backing paint. Used alone as a clear finish, a one way mirror is created. On antique mirrors where the copper layer must not show through, it can be used as a "copper free" prime coat followed by a top coat of, for example, the #175 mirror backing. When it is mixed with the Peacock Copper Powder, it forms the basis of Peacock's non-electrolytic copper backing process. In this process, a specially prepared copper powder is dispersed in the copper tite vehicle and then sprayed onto silver forming a copper-polymer prime coat. Top with #175 Mirror Backing Paint. Thin with #281 Standard Thinner.