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Can Iridite Be Colored White?

Is Iridite with a color of WHITE possible?... I have seen clear and gold and also a blueish color with the RoHS compliant Trivalent Iridite but never white... If a white Iridite finish is possible, would the surface be electrically conductive?

Bob Diamond
Mechanical Engineer - Hauppauge, New York
October 1, 2008

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The color is a function of the chemistry that results in the protective conversion coating. The hexavalent clear is generally a thinner version of the "yellow" or has been leached (even when it is a formulation specifically for clear, chemically it is a variation of the formulation for the yellow and is a thinner coating). The trivalent products are exhibiting a color which happens to be that which is a result of the chemistry. Many wish for the old yellow color of hex finishes.

If a white was on the market, I would presume it was the result of the chemistry to make a product that met the applicable corrosion protection and/or conductivity spec. not that it would have certain properties because it was white.

Gene Packman
process supplier - Great Neck, New York
October 4, 2008