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The Condition and Cleaning of Acrylic Emulsion Paintings

Published online by Cambridge University Press:  21 March 2011

Alison Murray
Affiliation:
Art Conservation Program, Department of Art, Queen's UniversityKingston, Ontario, Canada, K7L 3N6
Celina Contreras de Berenfeld
Affiliation:
Art Conservation Program, Department of Art, Queen's UniversityKingston, Ontario, Canada, K7L 3N6
S.Y. Sue Chang
Affiliation:
Art Conservation Program, Department of Art, Queen's UniversityKingston, Ontario, Canada, K7L 3N6
Elizabeth Jablonski
Affiliation:
Art Conservation Program, Department of Art, Queen's UniversityKingston, Ontario, Canada, K7L 3N6
Tracey Klein
Affiliation:
Art Conservation Program, Department of Art, Queen's UniversityKingston, Ontario, Canada, K7L 3N6
Marion C. Riggs
Affiliation:
Art Conservation Program, Department of Art, Queen's UniversityKingston, Ontario, Canada, K7L 3N6
Elizabeth C. Robertson
Affiliation:
Art Conservation Program, Department of Art, Queen's UniversityKingston, Ontario, Canada, K7L 3N6
W.M. Anthony Tse
Affiliation:
Art Conservation Program, Department of Art, Queen's UniversityKingston, Ontario, Canada, K7L 3N6
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Abstract

Cleaning acrylic emulsion paintings is challenging because of the material properties of the paint films, including their solubility. The goal of this work was to learn more about the effect of aqueous treatments on acrylic paints. Paint manufacturers were asked for their recommendations for cleaning these paintings and conservators were asked to comment on the damage observed in them and on the treatments applied. Responses showed that aqueous cleaning treatments are used, despite the associated risks, and that more technical information is needed about the effects of cleaning. The experimental section of this paper evaluated the changes in physical and mechanical properties of aged cobalt blue paint as a result of exposure to aqueous cleaning solutions. The results indicated that short immersions in these solutions caused a drop in most mechanical properties, but longer immersions did not; the drop after the short immersions was mostly due to the great increase in dimensional thickness of the paint films. Longer conservation treatment times are not being advocated.

Type
Research Article
Copyright
Copyright © Materials Research Society 2002

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