Most older paintings have had organic varnish coatings applied to the canvas. Over time these varnishes yellow often to an extreme degree. The molecular structure of organic varnishes also cross links, making them more difficult to remove the longer they remain on the painting. Dirt and grime also build up on the surface making the colors less vibrant and obscuring detail. The results of removing the old coatings shown below speak for themselves.

Example-Dutch oil painting restoration and conservationExample-Dutch oil painting restoration and conservation
Oil painting restoration and conservationAFTER

Paintings on Canvas Cleaning & Restoration | More Examples

19th Century Landscape, Private Collection, Boston, MA

Paintings on Canvas Cleaning

The painting was cleaned of the darkened surface grime and old varnish. A new coating of non-yellowing varnish was then applied.

Mt. Washington by Benjamin Champney 19th century, Private Collection, MA.

Paintings on Canvas Cleaning Example

The painting was never varnished but was covered with a heavy layer of dirt and grime. Sometimes when there is no varnish to protect the paint surface, cleaning a painting can be very difficult. This is often the case when microscopic oil droplets from fireplaces or heating systems mix with the dirt and grime forming a film that aggressively crosses links.

Springtime by John J. Enneking 19th century, Collection of Fall River Public Library, Fall River, MA.

Paintings on Canvas Cleaning

In this cleaning and restoration project, the dirt and grime were removed and the painting was lined with a new canvas support.

Mexican Landscape 20th century, Plympton Fine Arts, Plympton, MA

Paintings on Canvas Cleaning, example

This painting had only heavy dirt and grime. Before cleaning, the white stucco was medium gray.

German Farmyard 19th century, Private collection, Worcester, MA.

Paintings on Canvas Cleaning

In addition to dirt and grime this painting had a thin coating of discolored varnish. Restoration proved the sky was blue, not gray.

St. Nicolas, Greek Icon, cleaning example

Greek Orthodox Icon, repair, cleaning, restoration

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