28078
Accession Number
25962
Editor
Grimstad, Kirsten
Title Of Article Chaper
An investigation into cleaning procedures for mould stained Australian aboriginal objects painted with modern media
Title Of Journal Book
ICOM Committee for Conservation, 9th triennial meeting, Dresden, German Democratic Republic, 26-31 August 1990: preprints
Pages
157-162
Collation
3 figs., 2 tables, 4 appendices
Reference Bibliography
9 refs.
Publisher
ICOM Committee for Conservation
Publisher City
Paris
ISBN
0-89236-185-9
Language Of Text
English
Language Of Summary
English
Literature Type
Monograph : Proceedings
Literature Level
Analytic
Meeting
ICOM Committee for Conservation. Meeting
Abstract
A collection of modern Australian aboriginal painted wooden objects, upon arrival at the Australian Museum were found to be damp and infested with microfungi and booklice (Psocides). Tissue paper used to wrap the objects had stuck onto the decorated surfaces. Hyphal filaments also spread across this surface, masking the design. Black mycelium staining was apparent on some of the objects. There were two different types of pigment binder identified: acrylic emulsion paints with the binder being a copolymer of butyl acrylate and methyl methacrylate, commonly known as Rhoplex (Primal) (R) AC 235. The second binder used was found to be polyvinyl acetate (PVAc), a common wood working adhesive, often mixed with the traditional mineral pigments. Distilled water was shown to be the most appropriate cleaning solvent in this instance. Further studies into the use of enzymes, such as beta-glucanase and chitinase are being investigated for the removal of the black mycelium staining.
Keywords
cleaning;painted objects;modern materials;Australian Aboriginal; fungus; binders;butyl acrylate;methylmethacrylate;polyvinyl acetate;wood; distilled water;enzyme
pub_id
28078