We present here the results so far achieved in the framework of the EUARTECH project, concerning the evaluation of innovative treatments used to preserve outdoor bronze. Traditional coatings, such as Incralac and/or synthetic waxes (R21, TeCe Wachs 3534F), were compared with different organo-silanes materials. In order to evaluate their effectiveness, applications were made on urban natural aged copper plates and also on parts of a work of art: the sceptre of the equestrian bronze statue of Bartolomeo Colleoni, in Venice. Electron impedance spectroscopy (EIS), ATR mapping FTIR microscopy and colorimetric measurements were performed after an 8-months exposure. The results clearly demonstrate how the corrosion resistance of some of the new tested treatments has the same order of magnitude of those commonly used at present, with the great advantage of having no modification in the colour appearance of the treated patina.

Innovative Treatments for the Protection of Outdoor Bronze Monuments

JOSEPH, EDITH MICHELLE MARYSE;MAZZEO, ROCCO;PRATI, SILVIA;VANDINI, MARIANGELA
2007

Abstract

We present here the results so far achieved in the framework of the EUARTECH project, concerning the evaluation of innovative treatments used to preserve outdoor bronze. Traditional coatings, such as Incralac and/or synthetic waxes (R21, TeCe Wachs 3534F), were compared with different organo-silanes materials. In order to evaluate their effectiveness, applications were made on urban natural aged copper plates and also on parts of a work of art: the sceptre of the equestrian bronze statue of Bartolomeo Colleoni, in Venice. Electron impedance spectroscopy (EIS), ATR mapping FTIR microscopy and colorimetric measurements were performed after an 8-months exposure. The results clearly demonstrate how the corrosion resistance of some of the new tested treatments has the same order of magnitude of those commonly used at present, with the great advantage of having no modification in the colour appearance of the treated patina.
Metal 2007: interim meeting of the ICOM-CC Metal WG Amsterdam 17-21 September 2007
71
77
E.Joseph; P.Letardi; R.Mazzeo; S.Prati; M.Vandini
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/63243
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