Quote:
Originally Posted by Craig Sawyers
The color of the anodized finish makes little impact on emissivity since most radiational heat loss occurs at wavelengths higher than visible light.
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You sometimes see heatsinks which have been painted black. I have always wondered about the trade off between the effect of the colour on improved radiation, and the thickness of a layer of paint reducing conductivity.
From what you say, it seems possible that painting something black could actually be detrimental from a thermal standpoint? Probably not a big effect, just a waste of time?
B