Suitability and Sustainability of Anti-Graffiti Treatments on Natural Stone Materials

Valentina Roviello, Aurelio Bifulco, Abner Colella, Fabio Iucolano, Domenico Caputo, Antonio Aronne and Barbara Liguori
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Valentina Roviello: Department of Chemical, Materials, and Industrial Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
Aurelio Bifulco: Department of Chemical, Materials, and Industrial Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
Abner Colella: Department of Earth, Environment and Resources Sciences, University of Naples Federico II, Via Cintia 21, 80126 Naples, Italy
Fabio Iucolano: Department of Chemical, Materials, and Industrial Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
Domenico Caputo: Department of Chemical, Materials, and Industrial Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
Antonio Aronne: Department of Chemical, Materials, and Industrial Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
Barbara Liguori: Department of Chemical, Materials, and Industrial Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy

Sustainability, 2022, vol. 14, issue 1, 1-14

Abstract: Graffiti vandalism represents an aesthetic and structural phenomenon of degradation both for buildings and cultural heritage: the most used sprays and markers can permeate the stone materials exposing them to degradation. Hence, great attention is being currently devoted to new non-invasive chemical approaches to face this urgent problem. This work is aimed at deeply examining the effects of some of the most sustainable chemical protective methods on the physical properties of natural building materials (e.g., tuff and limestone) by testing two commercial anti-graffiti products. It was found that the nanotechnological product Ector (E) was more effective than Nord Resine (NR) in anti-graffiti applications even if its permanent character hinders its application to the cultural heritage. Conversely, the less performant NR could be used in this field due to its sacrificial behavior, according to the guidelines of the Italian Ministry of Cultural Heritage and Activities and Tourism. The findings highlight the importance of developing new sustainable methods for the preservation of cultural and building materials from vandal graffiti, which should combine the high hydrophobia, the ecological characteristics, and the effectiveness of E, with the sacrificial properties of NR.

Keywords: vandal graffiti; anti-graffiti products; sustainable chemical methods; alteration of stone materials; tuff; limestone; cleaning tests; spray; markers (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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