Oxidized Brass numbers and letters are water-jet cut from flat sheets of brass in the various thicknesses mentioned in the table above. The faces of these pieces are then brushed. The returns are bead-lasted. Next, the pieces are oxidized by submersion in a chemical solution to darken the brass into either a medium or dark finish.
As a final step, after tinting the returns with a very dark brown hue, the returns and faces are clear-coated and baked with a glossy 2-part hardened acrylic polyurethane clear coat.
Our solid "brass" alloy is, depending on availability, either C46400 Naval Brass (60% copper, 39.25% zinc and .75% tin) or a Muntz alloy C280 (60% copper & 40% zinc). Neither alloy contains lead.
Reminder: The photos on this page are representative samples. The photos were shot in direct mid-day sunlight. Under less intense lighting such as indoor illumination, the underlying copper color may not be so intense.
In addition, your custom order will be oxidized uniformly as a single batch. However, different custom batches may show different intensities of oxidization.
Warranty Exception: Oxidized brass address numbers are not warranted for high moisture areas, such as constant moisture from a garden sprinkler, or for salt-water, marine environments. We cannot extend our usual warranty for high moisture or salt-water environments.
We can provide a good substitute of the "oxidized" appearance that will resist moist locations. Tap here for chips of our Fabricated Titanium-Colored finishes.