Beacon Hill Tower Roof (Step 5) Aging the Copper Panels

Before applying the aging mix, the copper was cleaned with a window cleaner containing ammonia. The half-and-half salt and white distilled vinegar mix was painted on the copper panels, taking care not to let is drip. The salt did not dissolve, as is evident in the photo. The salt grains will turn greenish blue to become the smoke-and-mirrors iteration of verdigris.  (Click photos for larger image.)

On line discussion indicates that humidity will enhance the aging process, to the tower roof has been tented, taking care not to let the plastic touch the copper areas.

Coming soon, the Great Reveal! ♫♪♬