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January 25, 2026 • F.W. Woolworth Co.

Shellac Sealing Begins on Exposed Woodwork at the Woolworth Building

Applying shellac to interior wood surfaces.
Crews spray shellac evenly across interior wood elements.

Shellac sealing has begun on exposed wood elements inside the Woolworth building as part of the ongoing restoration work. Before shellac application, surrounding areas—including walls, windows and ductwork—are carefully masked to ensure the treatment is applied precisely. The shellac acts as a protective seal, helping lock in the finish while reducing odors and adding resistance to moisture. This step supports the durability and appearance of the interior wood details, as work continues inside the historic building.

Shellac sealing on interior woodwork.
Shellac is applied in thin layers to seal the interior woodwork.

Learn more about the ongoing restoration of the F.W. Woolworth Co. building.

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