Mineral (aluminum and potassium sulfate) that is white in colour and is used in the pictorial technique as a mordent or an anti-decayer in natural and animal glues. In restoration, it is also utilized as a conservative, for example, in the lining mixture. |
note: Allume, voce in Cecilia Prosperi, Il restauro dei documenti di archivio. Dizionarietto dei termini, Roma, Ministero per i Beni e le Attivitą Culturali, 1999.
De Vecchi Antonio, Fatta Giovanni, Glossario per rivestimenti ad intonaco, Palermo 1992. |