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Coloring
Sheets, profiles and other anodized aluminum fabrications can be left at the “natural” finish or be colored to meet special aesthetic requirements. In fact, the anodic oxide layer has a porous structure that easily adapts to different colorations.
Oxidal Bagno is capable of two different aluminum coloring techniques: electro-coloring and coloring by absorption. The color variations are different depending on whether one technique or the other is used.
Oxidal Bagno performs electro-coloring and coloring by absorption, each with unique and distinctive color variations.
Electrolytic coloring of aluminum involves immersion of the anodized material in a solution of tin sulfate or copper sulfate, to which current is applied. Depending on the solution chosen and the immersion time, the surface takes on a bronze and copper coloring in the different shades: champagne, dark bronze, dark brown and also black.
Coloring by absorption of aluminum is done by immersing the anodized material in a solution of iron ammonium oxalate for a variable time depending on the desired shade. The result will be gold in color.
Upon request, Oxidal Bagno can also make smoky, electric blue and cobalt colors, using organic substances.
