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SURFACES

Dirty Penny™

PREWEATHERED PATINA ON COPPER

Dirty Penny’s enigmatic colors provide a stunning copper surface unlike any other. It is available as a flat sheet good or for specification within a Zahner project.

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Dirty Penny features a rich array of colors, from reddish-brown to orange and yellow shades — even deep hues of purple. These tones intermingle and create an intriguing mottled effect, initially exhibiting a slight iridescence.

Dirty Penny can maintain its iridescent luster if properly sealed and maintained; the finish can last indefinitely as an interior surface. Conversely, when exposed to the elements, the copper transforms into a captivating blend of deep reddish hues.

While all patinated copper holds up better outside, Dirty Penny does so incredibly well.

The protective patina impedes the copper ions’ tendency to combine with oxygen. Corrosion will occur very slowly because the longer the exposure time to the atmosphere, the greater the bonds between the base metal and the oxide.

Dirty Penny is an excellent choice for interior surfaces such as ceilings and wall panels.

Additionally, due to copper’s malleability, it can be easily perforated, bumped, and embossed.

Dirty Penny Gallery

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FESTIVAL OF ARTS IN LAGUNA BEACH, CALIFORNIA.
FESTIVAL OF ARTS IN LAGUNA BEACH, CALIFORNIA.
Detail of the embossed Dirty Penny surface
DETAIL OF THE DIRTY PENNY PATINA ON COPPER PANELS
Dirty Penny Copper Surface at 15 Renwick.
15 RENWICK RESIDENTIAL DEVELOPMENT IN MANHATTAN WITH exterior copper panels.

See Dirty Penny in application through a selection of Zahner projects.

Laguna Beach, California

Festival of Arts

AECOM CLEVELAND OFFICE RECEPTION AREA WITH EMBOSSED DIRTY PENNY SURFACE
Cleveland, Ohio

AECOM Cleveland Office Interior

New York City

15 Renwick

WALL AND PARTITION SCREENS MADE WITH IMAGEWALL IN DIRTY PENNY COPPER
Stevens Point, Wisconsin

Sentry Insurance

Pueblo, Colorado

Pueblo Library

DIRTY PENNY COPPER SURFACE OF THE LIVERMORE ARTWORK.
San Francisco Bay

Livermore Outlets

Dirty Penny 3D Visualization

Use the visualizer to explore Dirty Penny in 3D environments.

Switch between Exterior & Interior views to see how the sun’s movement will play across a facade or how the Surface will appear from vantage points with a fixed light source.

Exterior
Interior

Product Information

DownloadsDetailsArticles
  • Product Datasheet
  • Specifications
  • Storage & Handling Instructions
  • Rhino Materials File
Recommended ApplicationExterior and Interior
Base Metal (alloy)copper
Standard Thicknesses20 oz
24 oz
32 oz
48 oz
Approx. Decimal (mm).0270” (.686)
.0323” (.820)
.0431” (1.09)
.0646” (1.64)
Approx. Weight (lbs/ft2)1.25
1.50
2.00
3.00
COTE (in/in/°F)9.8 x 10-6
Standard Sizes3′ x 8′
3’ x 10′
  • Recommended Application: Exterior and Interior
  • Base Metal (alloy): weathering steel (A606)
  • Standard Thicknesses: 14 ga, 12 ga, 11 ga
  • Approx. Decimal (mm): .0747” (1.90), .1046” (2.66), .1196” (3.04)
  • Approx. Weight (lbs/ft2): 3.13, 4.38, 5.00
  • COTE (in/in/°F): 7.0 x 10-6
  • Standard Sizes: 4′ x 8’, 4’ x 10’, 4’ x 12’, 5′ x 8’, 5’ x 10’, 5’ x 12’

Learn More About Dirty Penny and How it Compares to Other Copper Surfaces

Read our educational series on the history, manufacturing, and application of copper and Zahner Dirty Penny:

Part 1

Copper: The Dawn of a New Age and Modern Metal Marvels

Following a rich history, copper and its alloys continue to influence our contemporary world.

Read the Post

Part 2

The Finishes, Patinas, and Textures of Copper and Copper Alloys

Discover how the varied surfacing of copper becomes an expressive art form in itself.

Read the Post

Part 3

Dirty Penny™: Zahner’s Copper Patina Surface With Iridescent Appeal

An exploration of the creation and application of this preweathered copper patina.

Read the Post

Downloads

  • Product Datasheet
  • Specifications
  • Storage & Handling Instructions
  • Rhino Materials File

Details

  • Recommended Application: Exterior and Interior
  • Base Metal (alloy): copper
  • Standard Thicknesses: 20 oz, 24 oz, 32 oz, 48 oz
  • Approx. Decimal (mm): .0270” (.686), .0323” (.820), .0431” (1.09), .0646” (1.64)
  • Approx. Weight (lbs/ft2): 1.25, 1.50, 2.00, 3.00
  • COTE (in/in/°F): 9.8 x 10-6
  • Standard Sizes: 3′ x 8′, 3’ x 10′

Articles

Learn More About Dirty Penny and How it Compares to Other Copper Surfaces

Read our educational series on the history, manufacturing, and application of copper and Zahner Dirty Penny:

  • Part 1: Copper: The Dawn of a New Age and Modern Metal Marvels
  • Part 2: The Finishes, Patinas, and Textures of Copper and Copper Alloys
  • Part 3: Dirty Penny™: Zahner’s Copper Patina Surface With Iridescent Appeal

Get Started

Use Dirty Penny in Your Project

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