EFCO manufactures architectural windows, curtain walls, storefronts, and entry systems designed for commercial construction needs, sold through independent sales representatives across the United States.
Short History of Black Pigments. Carbon black was the first black. This dull black is the easiest to manufacture because it is made of charcoal. Another black is vine black, which is traditionally made by charring desiccated grape vines and stems, which produce beautiful bluish blacks. Bone black, made of burnt bones from prehistoric times, is the deepest available black.
1 PIGMENTO 'S different colors are formed when mineral pigments are added to the zinc during the factory-induced patina process. 2  PIGMENTO is not a painted finished, color variations are to be expected and no maintenace is required. 3  PIGMENTO still retains the look of zinc but has an added flair of color.inc Properties. Umicoreâs zinc as a building material is actually an alloy. It is 99.995% pure zinc, produced by an electrolytic process, alloyed with traces of copper and titanium added in controlled quantities. These elements reduce brittleness when cold and increase creep resistance.