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Treatment; 20 Dec 2012; Remove frame/box.. Improve appearance of fills. Examine paint layers and consolidate where necessary; Stone, Wall Paintings, Mosaics

Header: Treatment; 20 Dec 2012; Remove frame/box.. Improve appearance of fills. Examine paint layers and consolidate where necessary; Stone, Wall Paintings, Mosaics
Reason: Permanent Exhibition
Description: The object was removed from the box frame and carefully examinned under magnifacation for stability. On the proper left side hidden under the edge of the frame a new open crack was visible parallel to the edge. The crack was filled with a very thin slurry of Microballoons (silica or phenolic resin) in 20% Paraloid B72 (ethyl methacrylate copolymer) in Acetone (propan-1-one/dimethyl ketone)/Industrial methylated spirits (ethanol,methanol) and then retouched with Rowney's Cryla colours (acrylic). The lifting pain layeres were re-secured by applying under the flake 12% Primal B60H (acrylic) over Industrial methylated spirits (ethanol,methanol) used as a wetting agent. The discoloured old fills were retouched with Rowney's Cryla colours (acrylic) to ablend more subtly into the image. The surface was lightly cleaned with Groomstick (modified natural rubber). The tack of the groomstick was reduced by dipping it into Acetone (propan-1-one/dimethyl ketone) before use.
Details: Treatment