On the study of oil paint adhesion on optically transparent glass: conservation of reverse paintings on glass

Bayle, M. and Waugh, D. G. and Colston, B. J. and Lawrence, J. (2015) On the study of oil paint adhesion on optically transparent glass: conservation of reverse paintings on glass. Applied Surface Science, 357 . pp. 293-301. ISSN 0169-4332

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Abstract

Reverse painting on glass is a technique which consists of applying a cold paint layer on the reverse-side of glass. The main challenge facing these artworks is the fragile adhesion of the pictorial layer – a simple movement can modify the appearance of the painting. This paper details a study into the adhesion parameters of pigments on glass and the comparison between different pigments. The relationships between the binder (linseed oil) with pigments and the glass with or without the use of an adhesive are studied. Physical analyses by surface characterisation have been carried out to better understand the influence of the pigment. The use of a sessile drop device, optical microscopy, scanning electron microscopy (SEM), a surface 3D profiler and a pencil hardness scratch tester were necessary to establish a comparison of the pictorial layer adhesion. A comparison of the effect of two adhesives; namely ox gall and gum arabic, has shown that the adhesion is not only linked to the physical parameters but that possible chemical reactions can influence the results. Finally, a treatment based on humidity-extreme storage has shown the weakness of some pictorial layers.

Keywords:Reverse painting, art conservation, adhesion, wettability, glass, JCNotOpen
Subjects:W Creative Arts and Design > W160 Fine Art Conservation
Divisions:College of Science > School of Chemistry
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ID Code:19463
Deposited On:05 Nov 2015 15:15

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