![]() ![]() These bronzes are in a remarkable state of preservation and have been on view ever since their creation. Later on I will talk about the horses of St. The only reason the statue of Marcus Aurelius was saved from the melting pot was that in medieval times that thought he was the Christian Emperor Constantine. Only a few ancient statues - like the equestrian statue of Marcus Aurelius from Rome have survived without ever being buried or immersed in the sea and thus still possess their original surface. Some ancient statues, like the bronzes from the Villa of the Papyri in Herculaneum have been restored and in the process have had new patinas applied. Those bronzes have natural patinas that have taken hundreds of years to develop. Now we are not talking about ancient statues that have been dug up from the ground or raised from the seabed. Most people do not realize that bronze statues have artificial patinas applied to their surfaces. I have just published a "My Favorite Semi-Precious Stones for Hardstone Animals" - click here if you want to read it. ![]() Bronze gilding is discussed at length and there is an introduction to the bronzes of Constantinople. This blog article discusses the types of bronze patinas and how to recognize them. For comments or questions, including reproduction requests, contact the CCI.Most people do not realize that bronze statues have artificial patinas applied to their surfaces. These resources were published by the Canadian Conservation Institute (CCI). The authors thank Lana Chan and Liz Croome from the Western and Northern Service Centre of Parks Canada in Winnipeg for their ideas, comments and help. Edinburgh: Scottish Society for Conservation and Restoration, 1994. "Display Materials: The Good, The Bad and The Ugly." pp. Ottawa: Canadian Conservation Institute, 2004. Metals and Corrosion: A Handbook for the Conservation Professional. 108-121 in Caring for Your Collections (editor H. Ottawa: Canadian Conservation Institute, 1996. Mechanical Removal of Rust from Machined Ferrous Surfaces. Ottawa: Canadian Conservation Institute, 1997. Ottawa: Canadian Conservation Institute, 1995. Basic Care of Coins, Medals and Medallic Art. Ottawa: Canadian Conservation Institute, 1988. The Cleaning, Polishing and Protective Waxing of Brass and Copper. References and acknowledgements References loss of portable, valuable or rare objects.attack organic material associated with metals.corrodes metals above about 65% relative humidity.corrodes metals (from salts and acids on bare hands).cleaning chemicals (especially aerosols).They are often used as a basis for assessing the risks to a collection: Contaminants and pollutants The following factors can affect the deterioration of objects in collections. For more information, see the Canadian Association of Professional Conservators (CAPC) website. See Canadian Conservation Institute (CCI) Notes (9 series) available on the CCI website. Provide better ventilation to dilute source of problem (volatile organic acids) and consult a conservator about safe corrosion removal and disposalĭifficulty finding conservation resources Store inside a sealed plastic bag better yet seal inside a plastic bag containing dry silica gel and activated charcoal dry silica gel) to the bag and then resealīlue-green corrosion on copper alloys inside wood caseĪdd ventilation to case consider painting case Break seal by cutting small holes in bag to promote ventilation or.Leave alone to save information about history of use paste of precipitated calcium carbonate and water) Problems and Solutions ProblemsĬlean only when necessary use softest abrasive for the job (e.g. Provide reference material for further readingĪuthors Bart Ankersmit, Conservation ScientistĬultural Heritage Agency of the Netherlands.Offer tips for the proper care of metal objects.Act as a visual guide to the problems and damage occasionally observed in metal collections.Help staff responsible for historic houses, museums, churches.The PDF format of this text is also available for purchase as a spiral-bound colour-print booklet from Lana Chan, Parks Canada. Recognizing metals and their corrosion products.By Bart Ankersmit, Martina Griesser-Stermscheg, Lyndsie Selwyn and Susanne Sutherland ![]()
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