Patinas of various color can be created by treating metal surfaces with chemical solutions. Copper, brass and bronze coatings are used for traditional decoration of many types of metalwork including gates, mailboxes, metal roofs and gutters. We have collected patina recipes over the years and offer them here to the metal artist. http://www.sciencecompany.com/patinas/index.htm http://blogs.law.harvard.edu/tech/rss Wed, 01 Nov 2006 16:33:04 -0700 Wed, 01 Nov 2006 15:18:40 -0700 FeedForAll Mac v2.0 (2.0.0.4) unlicensed version; http://www.FeedForAll.com/ Older books list some chemicals by names now archaic or by common-use names. This list of some common chemicals indicates names, archaic or common and current technical ones. http://www.sciencecompany.com/patinas/patinasgloss.htm Wed, 01 Nov 2006 15:18:57 -0700 This list presents many of the chemicals that are in use by metal artists to create different colored patinas. Shown with current prices from The Science Company. http://www.sciencecompany.com/patinas/patinachems.htm Wed, 01 Nov 2006 15:18:24 -0700 The Science Company has collected over thirty recipes from a variety of sources through the years. The formulas have not been personally tested so there is no guarantee that they will work. We suggest they be employed on a "trial and error" basis first so their effectiveness can be judged by the user. http://www.sciencecompany.com/patinas/patinaformulas.htm Wed, 01 Nov 2006 15:17:18 -0700 A patina is a film formed on copper, bronze or other metal by natural weathering or by artificial treatment with chemicals. The advantage of a chemical patina is that it can be produced in a short time and, with practice, with a predictable appearance. In order to achieve consistent results, however, metal artisans have developed certain methods and approaches to meet this end. http://www.sciencecompany.com/patinas/patinasintro.htm Wed, 01 Nov 2006 15:15:24 -0700