Mohammed Samir Elmetwaly

Citation:

Mohamed, W. A., Rifai, M. M., Ghany, N. A. A., and M. S. Elmetwaly, "Conservation of an Outdoor Historical Bronze", Open Air Metal, Outdoor Metallic Sculpture: from the XIXth to the beginning of the XXth Century, Paris, France, 4-5 December, pp. 176-185, 2014.

Abstract:

This research aims to introduce the conservation and restoration of the statue of Colonel Joseph Anthelme sève "Soliman Pasha Al-Fransawi" made by Henri Alfred Jacquemart in Paris in 1874.
Investigative cleaning together with the examination and analysis of the statue showed that it has been affected by urban environment for more than 140 years. It has been previously striped, repainted with black paints and coated with Cellulose nitrate. Experimental work for testing cleaning materials and different patination recipes were performed on simulated metal coupons prior to conservation. This included surface cleaning, removal of modern paints and corrosion products, gap filling, application of artificial patina to retain the aesthetic appearance of the statue. Seven coating systems, of the most commonly used for the conservation of outdoor bronze statues were tested and evaluated using weight gain, color change and electrochemical impedance spectroscopy (EIS) in the laboratory and in actual outdoor conditions.