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Dexmet mentioned in interview with State of Connecticut at the 18th Group Exhibit, Hydrogen Fuel Cells exposition held at Hannover Messe, Germany, April 23rd through 27th, 2012
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This is one of the more common questions that we are asked. Customers are primarily concerned with adhesion and surface resistance. Does the surface resistance increase with increased tarnish levels? Will epoxy adhere to a tarnished copper surface? To try and provide an answer, we undertook some elementary evaluations of copper samples with varying levels of tarnish identified using the L*a*b* color space coordinates. For those unfamiliar with the L*a*b* system, the short answer is that every color can be defined in terms of 3 numbers. The first number, “L”, is for lightness which ranges from 0-100, with 0 being black and 100 being white. Everything else is shades of gray. The second number, “a”, is either positive (Red) or negative (green). The third number, “b”, is either positive (yellow) or negative (blue). That is it in a nutshell. All shades of copper and its tarnish can be defined in this way.
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The WordPress.com stats helper monkeys prepared a 2011 annual report for this blog.
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