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Conserving Louise Nevelson’s "Ocean Gate"

The Objects Conservation Department worked with outdoor sculpture contractors from Tracy Power Conservation to conserve the Louise Nevelson sculpture Ocean Gate in 2011. The sculpture is located at the south corner of the Osher Sculpture Garden at the de Young.

Louise Nevelson, Ocean Gate, 1982. Aluminum and black paint, 145 11/16 x 81 7/8 x 68 1/8 in. (370 x 208 x 173 cm). Fine Arts Museums of San Francisco, Museum purchase, gift of Barbro and Bernard A. Osher, 2002.72a-f

Ocean Gate is made of large panels of aluminum, which are welded and bolted together creating a multisurfaced, freestanding sculpture. We observed changes to the pigmented (colored) surface of this sculpture that necessitated conservation. We observed the following:

Mottling

The surface looked to be painted in different shades of grey and black. Was this the artist’s original intent or are we observing many re-paintings of the surface that have taken place since the sculpture was made?

Greying

Was the work originally colored dark grey or black? If it was originally black, then why was the paint fading and behaving so badly?

Blanching/chalking

This is similar to what you see when you lay a hot cup of coffee on a piece of wooden furniture–white misting on the surface. Were the components of the paint breaking down or was the sun doing the same thing as the coffee cup?

To research these issues, we talked to conservators who have worked on or written about treatments of Nevelson sculptures, and we contacted anyone who worked on Ocean Gate specifically. The most useful thing would be to talk to the craftsperson at the Lippencott Foundry in North Haven, Connecticut, who actually constructed this particular sculpture. This task was trickier than might be imagined, because that person retired some years ago. Luckily, we were able to track down Don Lippencott. When we spoke with him, we learned that he had worked directly with Louise Nevelson on the creation of this sculpture, so we felt confident with his advice and suggestions. He told us that the surface of this particular sculpture was intended to look very black, flat, and single-colored, which as it turned out, was not the easiest thing to achieve.

Some of the challenges with locating a paint system to meet these specifications were that:

Before we started the conservation, the surface appeared mottled, gray, and blanched.

Here is the sculpture after conservation.

Before treatment.

After treatment.

You can see the results of the many steps it took to achieve the even, matte, black surface.

Come view the sculpture in the garden at the de Young!