How to Dull Brass Plating

When aged, brass develops a distinctive, dull patina which softens the look of the metal, creating a unique design aesthetic. Although naturally this process requires weeks or months of exposure to harsh outdoor conditions, you can accelerate and control the dulling of brass plated objects using chemical agents. Chemically aging your brass plating allows you to reliably replicate the natural antiquing process of Mother Nature within a matter of hours.

5-gallon bucket
Clear ammonia
1-qt. glass container
Wire mesh
Masking tape
Acetone
Rag

Instructions

- 1
  Place a 5-gallon bucket in a sheltered outdoor area or well-ventilated space. Ensure that the bucket is stable and level.
- 2
  Pour 1 cup of clear ammonia into a qt.-sized glass container with a wide mouth. Place the container in the center of the bucket.
- 3
  Place a large sheet of sturdy wire mesh into the bucket on top of the jar. The mesh should extend as close to the edges of the bucket as possible. Secure the mesh to the sides of the bucket with masking tape if necessary.
- 4
  Remove any lacquer from the surface of the brass item by rubbing with an acetone-soaked rag until thoroughly cleaned.
- 5
  Place your brass item on top of the wire mesh above the ammonia. Place the lid on the bucket. Allow the bucket to sit undisturbed for one hour.
- 6
  Check the progression of the aging process once every hour until your desired effect is achieved. Remove the brass item from the bucket and rinse thoroughly in running water before use.

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