Preventing the Undesired Surface Veiling after Nanolime Treatments on Wall Paintings: Preliminary Investigations
نویسندگان
چکیده
During the last decades, discovery of nanolime and its introduction in field Cultural Heritage has entailed a significant advance for consolidation historic wall paintings. Nevertheless, use is not completely generalized yet within conservation practitioner’s community due to undesired white veiling deposit on surface after treatment which usually covers pictorial layer. Given scarcity existing literature specify how mitigate this side-effect, aim work carry out first assessment possible cleaning methods eliminate those deposits and, at same time, analyse their effects properties. To do that, we have developed laboratory fresco paintings specimens. After applying an artificial ageing cycle all them, consolidated them with CaloSil IP25, one most currently used commercial product practice. The elimination whitish been investigated different methods: (1) wiping off superficial excess immediately each application during treatment; (2) mechanical (scalpel) consolidation; chemical rigid gels water (3), ethylenediaminetetraacetic acid (EDTA) (4) citric (5) consolidation. effectiveness method assessed by non-destructive before consolidation, repeated cleaning, measuring differences colour, absorption capillarity (i.e., sponge test), adhesion Scotch Tape Test) quantifying thickness eliminated means photogrammetry. Results show that both removal yielded promising results
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ژورنال
عنوان ژورنال: Coatings
سال: 2021
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings11091083