Performance evaluation of a commercial protective coating through field-exposure tests on three stone substrates

Authors

  • Andrea Bergomi Department of Chemistry, Unviersity of Milan, Via Golgi 19, 20133 Milan
  • Valeria Comite Department of Chemistry, Unviersity of Milan, Via Golgi 19, 20133 Milan
  • Paola Fermo Department of Chemistry, Unviersity of Milan, Via Golgi 19, 20133 Milan
  • Michela Ricca Department of Biology, Ecology and Earth Sciences, University of Calabria, Via Pietro Bucci, Arcavacata di Rende (CS)
  • Mattia Borelli Department of Chemistry, Unviersity of Milan, Via Golgi 19, 20133 Milan
  • Cristina Maria Belfiore Department of Biological Geological and Environmental Sciences, University of Catania, Corso Italia 57, Catania
  • Luciana Randazzo Department of Earth and Sea Sciences, University of Palermo, Archirafi, Palermo
  • Silvestro Antonio Ruffolo Department of Biology, Ecology and Earth Sciences, University of Calabria, Via Pietro Bucci, Arcavacata di Rende (CS)
  • Maura Francesco La Russa Department of Biology, Ecology and Earth Sciences, University of Calabria, Via Pietro Bucci, Arcavacata di Rende (CS)

DOI:

https://doi.org/10.21014/actaimeko.v12i3.1521

Keywords:

Coatings, Fosbuild FBLE 200, Stone, Field-exposure tests

Abstract

In the last decades, there have been several studies on Cultural Heritage regarding the performance of protective and consolidating coatings for the prevention of decay. A coating must have several characteristics such as efficiency, breathability, and must be durable and reversible. In this research work, the performance of a commercial protective product (Fosbuild FBLE 200) was evaluated. This coating is composed of a TiO2 nanopowder dispersed in an aqueous solution of an acrylic polymer. The product, which exhibits depolluting, antimicrobial, water-repellent and self-cleaning properties, has been applied on three different lithotypes: Carrara marble, Noto stone, and Comiso stone. Field-exposure tests were carried out in two different outdoor environments (Catania and Palermo) in order to assess its suitability. Promising results were obtained for the Carrara marble after one year of exposure; however, a decrease in effectiveness was observed at the end of the second year.

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Published

2023-09-04

Issue

Vol. 12 No. 3 (2023)

Section

Research Papers

License

Copyright (c) 2023 Andrea Bergomi, Valeria Comite, Paola Fermo, Michela Ricca, Mattia Borelli, Cristina Maria Belfiore, Luciana Randazzo, Silvestro Antonio Ruffolo, Maura Francesco La Russa

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