Oil Paintings 1
Before Treatment
Detail of early 19th century oil on canvas by an unknown artist.
The child at left was the grandmother of the client. Note the tear
by the left ear, surface dirt and discolored varnish.
During Treatment
Removal of disfiguring layers after solubility testing of the
surface accretions, varnish layer, pigments and binders.
After Treatment
After tear repair, filling, inpainting, and final varnishing. Note
that the painting now clearly depicts the artist's intent and color
palette. The contrast is vastly improved, there is greater detail
in all areas including shadows, and there is improved color saturation.
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Before framing, this painting was sprayed on the verso with water to shrink the canvas and remove the bulges. Solving one problem created another more serious problem.
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After treatment of the 19th century genre painting to stabilize the paint film, it was returned for framing to a relieved client and framer.
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When the fibers of the canvas shrink, the friable paint film releases stress by cracking, or as in this case, "tenting."
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The stretcher bars were attached to expandable bars and the painting was gradually humidified in a chamber to relax the paint film. Minor adjustments to the bars allowed for the elongation of the fibers of the canvas to aid in reseating the tenting paint film.
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Localized treatment with heated air and a heat spatula helped to reattach and consolidate the lifting paint. We recommend not spraying the back of paintings to get rid of unsightly deformations but we are usually asked
only after the fact.
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