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Denninger Patina

Embellish your weather vane with a Patina that will make it look 100 years old. Really...

Copper has a unique way of oxidizing in the weather - it does not rust, rather, it achieves a bluish-green patina called verdigris (from the Old French "verte grez", an alteration of "vert-de-Grice" or "green of Greece".) The chart below will show how the color naturally advances from raw copper to chocolatey-brown to dark verdis to the almost white of a truly aged copper decoration. In some geographic locations, copper will patinate faster, or with a different hue. Denninger can provide this handsome verdigris patina with their "hot verdigris patina" that Al learned from an old German coppersmith. Our patina will not rub off on your hands or "chalk off" on your roof like the quick spray-on chemicals will. This technique might be a closely-held secret, but the results are a realistic, weathered antique look.

Another popular finish is the interesting Black Patina which Denningers can apply, using a special chemical mixture. It results in a streaky variegated patina which resembles the color of cast iron vanes from the Colonial era. We have found that this is a striking combination when used with touches of gilding!

Original Ox Weather Vane & Denninger Replica
Pictured above left is a 100+ year old copper Ox Weather Vane and on the right a Denninger exact replication in natural copper finish. Notice the beautiful original verdigris patina on the antique and check out the many bullet holes. The replica was made out of similar copper materials, using the original techniques to craft it, and will age naturally over time like the original. However, we can also "pre-age" copper using a time honored hot patina which takes several hours for each piece and is incredibly durable. Another benefit is that a Denninger patinated piece will continue to age as time goes on and look even better.

Denninger Batchelor Finial in Natural Finish with Radar HelpingDenninger Batchelor Finial with Patina
Radar helps us when he can... Here he is with a Denninger Batchelor Finial - before Verdigris and after. Cool huh?
R24 Rooster with custom ball & arrow added in a Verdigris finish

This elegant R24 Full-bodied Rooster has been customized with a larger arrow and a large globe beneath the cast bronze feet, and "finished" with our handsome Verdigris Patina.
Verdigris Patina on Large Denninger Cupola Vent with Finials
A pair of these over 7' tall Denninger cupola vents with Verdigris Patina were delivered to Gainesville, FL, for an architect's incredible residence with a slate roof.
Denninger Custom Redcoats Weathervane in our black patina with gold leaf accents
This photo was taken about 5 years after the Redcoats Weathervane was installed. We went back to see with our own eyes how the patina was progressing. The black patina had gotten darker and richer with the passing of time, in striking contrast to the gold leaf accents.
Black Patina on 1993 Swallowtail Banner and complete setup
One of our very first weather vanes was this Denninger Swallowtailed Banner with the addition of a date in the tail, and Black Patina to give it an Early American look.
Denninger Wren Pennent with Black Patina and Gold Leaf Eagle
This historically accurate Denninger Wren Pennant with Black Patina was crowned with a full-bodied 23k Gold Leaf E12 Eagle. Notice the realistic vertical streaking of the patina. The 1742 cut-out in the tail honored this Southern Plantation's establishment date.

Copper Aging Chart
Natural Verdigris Patina Development Over Time

Copper Aging Chart Natural Patina Developement

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Alfred H. and Beth R. Denninger, Webmasters
Denninger Weather Vanes & Finials, 3773 Marion County 160, Theodosia, MO. 65761 USA
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Copying of our original material, photos or designs without permission is strictly prohibited. "The Weather Vane Home Page" has been online since Feb. 27, 1996