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Treatment; 20 Oct 2010; Clean. Investigate diagonal crack through middle.; Stone, Wall Paintings, Mosaics

Reason: Loan
Description: Dry cleaned using Wishab sponge (vulcanized latex,filler) . Removed dirt and sponge residues with a soft brush and vacuum cleaner. Surface cleaned with enzyme (saliva), distilled water and Acetone (propan-1-one/dimethyl ketone) applied with swabs of cotton wool. Gallery paint removed from the front and edges with Nitromors water soluble (methylene chloride,sodium hydroxide,cellulose) ,removed with Acetone (propan-1-one/dimethyl ketone) . Areas of lamination were consolidated in 1992 using Paraloid B72. For the current treatment a few of the laminations on the front were re-consolidated with 5% Paraloid B72 (ethyl methacrylate copolymer) in Acetone (propan-1-one/dimethyl ketone) /Industrial methylated spirits (ethanol,methanol) . A light weight rested on the surface whilst the consolidant cured. The crack along the fron was gap filled using Flugger acrylic putty and retouched using Rowney's Cryla colours (acrylic) acrylic colours.
Details: Treatment