Eco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials

The application of hydrophobic treatments to stone surfaces is the most common proven method to prevent, or at least limit, the degradation of stone-made constructions and artworks brought about by the ingress and action of water, in particular in the case of very porous stone materials. To avoid th...

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Autores principales:	Mariateresa Lettieri, Maurizio Masieri, Marika Aquaro, Debora Dilorenzo, Mariaenrica Frigione
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	stone protection cultural heritage eco-friendly protectives hydrophobic treatments anti-graffiti multifunctional coatings Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/f103913101714744b8ffa18bf352ecf7
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id	oai:doaj.org-article:f103913101714744b8ffa18bf352ecf7
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spelling	oai:doaj.org-article:f103913101714744b8ffa18bf352ecf72021-11-25T17:15:25ZEco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials10.3390/coatings111112702079-6412https://doaj.org/article/f103913101714744b8ffa18bf352ecf72021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1270https://doaj.org/toc/2079-6412The application of hydrophobic treatments to stone surfaces is the most common proven method to prevent, or at least limit, the degradation of stone-made constructions and artworks brought about by the ingress and action of water, in particular in the case of very porous stone materials. To avoid the use of protective products containing harmful solvents, new green products have been proposed. In this paper, an eco-friendly hydrophobic coating, based on a fluorine polymer dispersed in water, was deeply analyzed to evaluate its protective properties, especially for very porous stone substrates. To this aim, a wide characterization of treated and untreated Lecce stone elements, i.e., a stone typical of the Apulia region, was carried out to assess the optimum required amount, the effectiveness and the protective capability, even against graffiti staining, of the green hydrophobic treatment, still allowing the stone to retain adequate vapor permeability. The efficacy of the eco-friendly product was analyzed also after a short time (four weeks) of outdoor exposure. Suitable performance and short-term durability of the <i>green</i> hydrophobic coating were found, comparable or even greater than those reported in the current literature for other widespread commercial products, confirming the capability of the product to preserve porous stone surfaces even in absence of solvents in its formulation. The study also allowed to experiment with the “contact sponge” test as an appropriate method for evaluating the water absorption properties of the stone.Mariateresa LettieriMaurizio MasieriMarika AquaroDebora DilorenzoMariaenrica FrigioneMDPI AGarticlestone protectioncultural heritageeco-friendly protectiveshydrophobic treatmentsanti-graffitimultifunctional coatingsEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1270, p 1270 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	stone protection cultural heritage eco-friendly protectives hydrophobic treatments anti-graffiti multifunctional coatings Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	stone protection cultural heritage eco-friendly protectives hydrophobic treatments anti-graffiti multifunctional coatings Engineering (General). Civil engineering (General) TA1-2040 Mariateresa Lettieri Maurizio Masieri Marika Aquaro Debora Dilorenzo Mariaenrica Frigione Eco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials
description	The application of hydrophobic treatments to stone surfaces is the most common proven method to prevent, or at least limit, the degradation of stone-made constructions and artworks brought about by the ingress and action of water, in particular in the case of very porous stone materials. To avoid the use of protective products containing harmful solvents, new green products have been proposed. In this paper, an eco-friendly hydrophobic coating, based on a fluorine polymer dispersed in water, was deeply analyzed to evaluate its protective properties, especially for very porous stone substrates. To this aim, a wide characterization of treated and untreated Lecce stone elements, i.e., a stone typical of the Apulia region, was carried out to assess the optimum required amount, the effectiveness and the protective capability, even against graffiti staining, of the green hydrophobic treatment, still allowing the stone to retain adequate vapor permeability. The efficacy of the eco-friendly product was analyzed also after a short time (four weeks) of outdoor exposure. Suitable performance and short-term durability of the <i>green</i> hydrophobic coating were found, comparable or even greater than those reported in the current literature for other widespread commercial products, confirming the capability of the product to preserve porous stone surfaces even in absence of solvents in its formulation. The study also allowed to experiment with the “contact sponge” test as an appropriate method for evaluating the water absorption properties of the stone.
format	article
author	Mariateresa Lettieri Maurizio Masieri Marika Aquaro Debora Dilorenzo Mariaenrica Frigione
author_facet	Mariateresa Lettieri Maurizio Masieri Marika Aquaro Debora Dilorenzo Mariaenrica Frigione
author_sort	Mariateresa Lettieri
title	Eco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials
title_short	Eco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials
title_full	Eco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials
title_fullStr	Eco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials
title_full_unstemmed	Eco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials
title_sort	eco-friendly protective coating to extend the life of art-works and structures made in porous stone materials
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f103913101714744b8ffa18bf352ecf7
work_keys_str_mv	AT mariateresalettieri ecofriendlyprotectivecoatingtoextendthelifeofartworksandstructuresmadeinporousstonematerials AT mauriziomasieri ecofriendlyprotectivecoatingtoextendthelifeofartworksandstructuresmadeinporousstonematerials AT marikaaquaro ecofriendlyprotectivecoatingtoextendthelifeofartworksandstructuresmadeinporousstonematerials AT deboradilorenzo ecofriendlyprotectivecoatingtoextendthelifeofartworksandstructuresmadeinporousstonematerials AT mariaenricafrigione ecofriendlyprotectivecoatingtoextendthelifeofartworksandstructuresmadeinporousstonematerials
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Eco-Friendly Protective Coating to Extend the Life of Art-Works and Structures Made in Porous Stone Materials

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