It is one thing to throw them against the glass that protects a painting, another on marble or bronze. Water is not enough to erase them, and if action is not taken immediately it is a risk
The charcoal thrown into the water of the Barcaccia in Piazza di Spagna did not cause damage to Bernini's fountain. But the washable yellow paint that Last Generation activists have thrown at some monuments is not washable. Throwing it against a glass is one thing, doing it on a stone, marble or bronze surface is another. Florence is the mecca of restoration and the soiling of Palazzo Vecchio was canceled thanks to an immediate intervention. But with a delay of even just an hour, the pigments would have penetrated the pores of the pietraforte and removing them would have been a challenge. This is what happened to Cattelan's middle finger in Piazza Affari in Milan. - video
Last Generation, activists smear Cattelan's middle finger. And they get insulted by tourists Last Generation, activists smear Cattelan's middle finger. And they get insulted by touristsUltima Generazione smears the statue in Piazza Duomo in Milan – guard
The travertine of the base is a sponge and despite the cleaning, the traces of color are still evident. Also in Milan, for the monument to Vittorio Emanuele II in Piazza Duomo, defaced on 9 March last, the experts of the Superintendence say that 'real and proper restoration will be necessary, both of the reliefs and of the bronze statue, and of the sculptural and of the steps in Carrara marble». A chemical-physical analysis will define the type of paint used, after which the restorers will decide the cleaning products to use «with a controlled mechanical action». Now the question is another: who will pay the bill?
London, the Ukrainian flag in front of the Russian embassy - guard
Source: oggi.it