Benm
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- Joined
- Aug 16, 2007
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Stealth aircraft 'paint' actually has very good emissivity for IR, but has a specific structure that prevents it from being reflective in the microwave spectrum.
In general the visible color of paint does not tell you that much about the IR emissivity of it. Radiator paint is usually white in the visible spectrum but black in the IR. Black paint often has a good IR emissivity, but there are exceptions there as well. I suppose the best way to find out it to simply test it - paint somehting of known temperature with it and see how the IR readings turn out.
In general the visible color of paint does not tell you that much about the IR emissivity of it. Radiator paint is usually white in the visible spectrum but black in the IR. Black paint often has a good IR emissivity, but there are exceptions there as well. I suppose the best way to find out it to simply test it - paint somehting of known temperature with it and see how the IR readings turn out.