Marouflage
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A marouflage (from the French maroufle , the name for a strong glue) is the pasting of a textile image carrier (e.g. a canvas) with a rigid carrier.
This technique makes it easier to decorate vaulted ceilings with paintings. The work, created in the appropriate dimensions on the ground floor, is glued directly onto the vault caps, or onto a replica of the vault, which is then attached under the ceiling.
It also serves to protect existing paintings when they are to be replaced. For example, the ceiling painting by Chagall in the auditorium of the Paris Opéra Garnier was marooned onto an artificial dome , behind which the original painting has been preserved.
During the restoration , the marouflage was used to stabilize the textile image carrier or to glue holes, cracks, unevenness, etc. under. The aim is to put a stop to degradation , to avoid further damage and to maintain a smooth surface.
Since marouflage can seldom be undone, but reversibility is one of the main requirements for a successful restoration today, this technique should no longer be used for this.
