Thursday, February 18, 2010

Using Cupric Sulfate as a Zinc Patina for Sculptures

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More examples of zinc patina in this post.

1. Clean metal with wire brush to get off all zinc oxide.
2. Paint on a thin layer of Cupric Sulfate (while wearing gloves) Get Cupric Sulfate here at Rotometals
3. Wrap in thin layer of saran wrap so it does not evaporate
4. wait 3 hours.
5. brush off the high spots with wire brush.
6. Three coats of clear coat.



2 comments:

  1. You can achieve much the same result with vinegar or HCl.

    ReplyDelete
  2. sweet. don't have HCL but vinegar would be cheap. Gotta try it soon.

    ReplyDelete

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