Creating a Beautiful Patina on Copper using Ammonia

Are you looking to add a touch of elegance to your copper or brass pieces? One simple yet effective way to do so is by creating a beautiful patina using ammonia. In this article, we'll explore the process of how to achieve this stunning effect.

Before we dive in, it's essential to note that some copper pieces may be coated with a sealant that needs to be stripped first. This is especially true for pieces from the 1970s, such as Coppercraft Guild pieces. To check if your piece has a coating, simply try fuming it and see if the metal remains shiny. If it does, then you'll need to remove the sealant before proceeding.

To start, gather your materials: a bucket, ammonia, and your copper or brass piece. Choose a bucket that can be fully sealed, such as a Lowe's bucket or even a Tupperware container. Make sure to select something plastic or metal for your piece to sit on without touching the ammonia.

Next, pour a small amount of ammonia into the bucket, just enough to cover the bottom. You don't want to breathe in big amounts of the chemical, so make sure you're outside or in a well-ventilated area. Place your piece on its platform inside the bucket and seal the lid tightly.

Allow the piece to sit for a specified amount of time. The longer it sits, the darker the patina will be. You can leave it overnight or fume it for a couple of hours – whichever you prefer. Just remember not to touch the metal while it's fuming, as skin oils can prevent the process from working properly.

After the desired time has passed, remove your piece from the bucket and wash it gently with water. Dry it thoroughly before handling or displaying.

Tips and Variations:

* If your copper piece doesn't respond to fuming after a day, try leaving it in the bucket for an additional week.

* You can also use acetone to remove sealants that come off easily, while stronger chemical strippers may be needed for more stubborn coatings.

* Consider using a sieve or strainer to hold your piece above the ammonia, as this can help prevent any accidental spills.

By following these simple steps and tips, you'll be able to create a beautiful patina on your copper and brass pieces. With patience and practice, you'll achieve the stunning results you're looking for.

Ammonia patina copper