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Treatment; 29 Mar 1994; Clean, remove plaster, construct mount.Robert; Stone, Wall Paintings, Mosaics

Reason: Loan; Photography
Description: Steam cleaned using distilled water; run off dirt and water absorbed into soft tissue. Traces of a reddish ground layer over neck and back plate revealed after cleaning.Traces of decorators paint removed with Nitromors water soluble (methylene chloride,sodium hydroxide,cellulose) removed with Acetone (propan-1-one/dimethyl ketone). Whatman's laboratory sealing film (polyethylene,polyisobutylene,paraffin) applied to base of object as a sealant. Jubilee professional body filler (polyester resin) applied to base bulked with pieces of Breezeblock and old sections of filler resin. Resin applied in layers with a further layer of David's P40 Isopon (polyester,glass fibre) in the center for extra strength. Once set, the base and Whatman film were removed. The base was shaped on a Ban-Saw and filled as necessary with more applications of Jubilee resin fine surface.The base of the sculpture was sealed with 20% Paraloid B72 (ethyl methacrylate copolymer) in 1:1 Acetone (propan-1-one/dimethyl ketone)/Industrial methylated spirits (ethanol,methanol). The base was then adhered to the sculpture using Sebralit resin (polyester) and the gap between the object and base filled with 20% Paraloid B72 (ethyl methacrylate copolymer) in acetone/ims, Microballoons (silica or phenolic resin) and crushed marble powder 1:1. The surface of the base was colour matched to the surrounding area with Rowney's Cryla colours (acrylic).
Details: Treatment