Patina Cupric Sulfate Solution - Gray to Black on Zinc

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  • Patina Cupric Sulfate Solution - Gray to Black on Zinc
  • Patina Cupric Sulfate Solution - Gray to Black on Zinc
  • Patina Cupric Sulfate Solution - Gray to Black on Zinc


Cupric Sulfate comes in either an 8 ounce or 1 gallon bottle. This is a popular Patina for zinc that makes the sheets instantly darker and helps to give your zinc that desired aged look. Depending on the concentration of the patina and the method of application you can attain a variety of shades and textures on your zinc. In order to patina your zinc, first clean the surface with denatured alcohol or acetone to insure that it is free of oil, oxides, and plating residue as these will greatly affect the patina. To dilute the solution, add distilled water (up to 80% water/20% Cupric Sulfate) until you receive the desired concentration. You may then apply the patina by using spray bottles, brushes, or sponges or by burnishing the zinc with an abrasive pad. Once you have achieved the desired finish, you should seal your zinc with one of our sealants.

Please note that the color can vary greatly depending on different factors, such as concentration, brush strokes and method
of application. Depending on how concentrated you make your solution, we generally recommend one bottle of Cupric Sulfate Patina per sheet. In order to determine how concentrated you want your patina and how you would like to apply it, we encourage you to order some extra zinc on which to practice your application techniques.

Would you like to see an example of our natural zinc after we have treated it with our Cupric Sulfate Patina? Please order one of our Zinc Sheet Sample Packs and in 1-3 days you will receive a variety pack of all of our sizes of zinc and our patinas.

Please go to our video page for helpful ideas on how to use the Cupric Sulfate patina.



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3 Reviews

  • 5

    gray patina

    Posted by Bard on Nov 2nd 2022

    it worked for me, i wanted gray so i diluted it with water

  • 5


    Posted by Clark on Aug 15th 2021

    Great product. Produced a beautiful patina on galvanized steel. Very controllable with dilution and number of coats. I sealed the finish with a 2k matte clear coat. Looks awesome and bulletproof.

  • 5

    Cupric sulfate solution

    Posted by David on Mar 10th 2021

    I used this to put a patina on 20ga zinc sheet. After cleaning the fresh sheet with acentone, I applied this with a spray bottle at about a 8-1 ratio of water to solution. I threw some coarse salt on the sheet to add to the patina texture. Did this 4 or 5 times over the course of a weekend, letting it dry each time. It came out just how I wanted - like an old distressed zinc table top. All in all very easy to work with.

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