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The oldest method, known as the a massello technique, involves cutting the wall and removing a considerable part of it together with both layers of plaster and the fresco painting itself. The stacco technique, on the other hand, involves removing only the preparatory layer of plaster, called the arriccio together with the painted surface.
The plaster contains liquid lime (calcium hydroxide). In the process of drying, the liquid lime in the plaster combines with the paints and turns into carbonate of lime, which is chemically equivalent to limestone or marble. Upon drying and setting, the pigments permanently fuse to the plaster to form a solid, durable painting. [5]
The ceiling before the restoration [c]. The preliminary experimentation for the modern restoration began in 1979. The restoration team comprised Gianluigi Colalucci, Maurizio Rossi, Piergiorgio Bonetti, and others, [6] who took as their guidelines the Rules for restoration of works of art as established in 1978 by Carlo Pietrangeli, director of the Vatican's Laboratory for the Restoration of ...
How To Clean Painted Walls What You'll Need. Vacuum or duster. 1 bucket of warm water. 1 empty bucket. Liquid dish soap. Soft, clean cloths. Clean towels. Step-by-Step Guide
Prep the walls before painting: Remove dirt, dust, and grease with a rag and soapy water. Let the walls dry completely before applying primer and between every coat. Let the walls dry completely ...
Here, the experts explain how to clean walls the right way. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...