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Performance of a new anti-graffiti agent used for immovable cultural heritage objects
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.ORCID iD: 0000-0003-1904-7426
2014 (English)In: International Journal of Architectural Heritage, ISSN 1558-3058, E-ISSN 1558-3066, Vol. 8, no 6, p. 820-834Article in journal (Refereed) Published
Abstract [en]

Cultural Heritage objects are in many cases invaluable and irrecoverable, therefore their protection is a major goal. One threat arises by intentionally defacing such objects with graffiti. One possibility to face the imminent threat is the application of a surface protection in form of anti-graffiti systems (AGS). However, the knowledge about the performance and durability of AGS on substrates used for historical buildings is still fragmented. The goal of the present study was to investigate the performance of a newly developed anti-graffiti agent in comparison to a selection of commercial anti-graffiti agents on different substrates that were used for historical buildings. Four commercial anti-graffiti agents with different chemical formulations were selected and tested with the new agent on different stone and brick substrates. The results showed clearly that AGS based on dense, water-vapor impermeable coatings are not suitable to porous substrates such as sandstone, brick, or porous limestone due to their impairment of the hygric properties and the visual appearance of a substrate. The new agent could not completely reach the cleaning efficacy of the dense coatings but exhibited a much lower impact on the properties of the substrate and was therefore better compatible to historical surfaces.

Place, publisher, year, edition, pages
2014. Vol. 8, no 6, p. 820-834
Keywords [en]
anti-graffiti agent, brick, cleaning efficacy, compatibility, cultural heritage, graffiti, performance, stone
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-2693Local ID: 4694OAI: oai:DiVA.org:ri-2693DiVA, id: diva2:960296
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2018-08-15Bibliographically approved

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Mueller, Urs

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