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INFRARED (IR)

Invisible part of the electromagnetic spectrum between radio waves and the red portion of visible
light, with wavelengths between 0.78 and 1.0 micrometer (780 to 1,000 nanometers). It produces
a heating effect on impact with an absorptive surface, and sometimes is used to cure coatings.
Infrared radiation also is used to chemically characterize materials such as coating binders in
infrared spectroscopy.


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