[Shop-talk] Want to corrode copper fast.

[greg at gelhar.com]

Here is a slower method using things found in the kitchen.

Swab the copper for a few days with a mixture of equal parts of sugar,
salt, and strong vinegar. Don't immerse the metal. Crush the salt and
sugar to a fine powder before mixing the solution.

Greg G. Osseo, MN

> My wife has some copper tubing she wants to age to green and do it fast.
>  needs to have that green look for a project.  Is there a specific acid to
> use?  I assume that I should sand it first.
> --