Painted Fiberglass-Reinforced Contemporary Sculpture: Investigating Composite Materials, Techniques and Conservation Using a Multi-Analytical Approach

Applied Spectroscopy
Barbara SalvadoriCecilia Gaia Rachele Tognon

Abstract

A multi-analytical approach was used to study the constituent materials, manufacturing technique, and state of conservation of a contemporary sculpture. This sculpture, entitled Nuredduna, was created by Aligi Sassu in 1995 and is located in the "Bellariva garden" in Florence (Italy). Fourier transform infrared spectroscopy (FT-IR), optical and electronic microscopy (OM and SEM-EDS), X-ray diffraction (XRD), and portable X-ray fluorescence (XRF) highlighted the multi-layered structure of the statue: fiberglass and an overlay of different layers (gel coat) applied with an unsaturated polyester resin added with aggregate materials and bromine compounds. A top-coat in acrylic black varnish, used as a finish, was also found. The combination of these materials with their different compositions, environmental impact, and even vandalism have negatively affected the state of conservation of Nuredduna, causing the loss of strata in its lower parts (legs and feet).

References

Nov 3, 2009·Analytical and Bioanalytical Chemistry·Ruth Chércoles AsensioMarisa Gómez
Oct 6, 2010·Analytical and Bioanalytical Chemistry·Georgios StamatakisApostolos Spyros
Jan 21, 2011·Analytical and Bioanalytical Chemistry·Massimo LazzariM Arturo López-Quintela
Aug 28, 2014·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Ana Cardeira MafaldaMarta Manso

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Methods Mentioned

BETA
infrared spectroscopy
scanning
X-ray
Energy Dispersive

Software Mentioned

Opus
ACT
Spectrum
HighScore

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