Three shades of patina on blackened stainless steel alloy 304. Notice the light pitting and color irregularities which are more visible as the patina is lightened.
Cast, Extruded, Machined, forged and Drawn brass and bronze are married in a dark brown patina finish which is left to weather without a wax or lacquer coating in central Texas. The abundance of limestone in the area contributes to the rapid appearance of green tones in the patina. Greg Wyatt Architect.
Cold rolled steel on the left and Hot Rolled Steel with Mill Scale on the Right. Mill scale is the dark blue grey surface present on hot roll materials. It will not take patina, it is a very tough oxide layer created during the manufacturing process at the steel mill. Cold Roll steel arrives without this layer and can be processed with patina after cleaning. Notice the presence of scratches on the cold roll material. These can be expected or your fabricator may have to add additional mechanical finishing to remove them.
These 1" square balusters have been forged and then wire brushed. These are "As-Fabricated" and will rust if not protected further by wax, oil, or paints. Surface Texture from the forging hammer can be manipulated to achieve many effects.
Cast Bronze Doors Detail of Finish. These large doors were cast in bronze and wire brushed and polished to achieve the finish shown here. The relief is very low. They were coated with a clear lacquer giving them protection from oxidation. The sand casting process created pits and texture that add to the overall visual interest.
Custom Cast and Forged Bronze Railing and Structural Column. This work has a dark brown patina finish that is left to oxidize without further maintenance. Greg Wyatt Architect. Wallace Engineering.
Steel and Stainless Guardrails for Dallas Area Rapid Transit Station, Zoo Station. These railings are cut from A36 mild steel and coated with a sophisticated urethane system that allows for the removal of graffiti. Wiemann specializes in multi-stage coating systems.
Custom Bronze Bar Die Wall Panels. Patinated brass panels with linear grain and polished brass buttons, all sealed for protection with a clear lacquer.