Our transmitters emit a wavelength of 2-10 microns. Any organic product is absorbed between 3-4 microns. Our emissions perfectly match the specifications to be absorbed by paint, glue, mastic, etc.
For example, if they were not perfectly in the “focus” during the curing time of “racking”, there would be a curing time of 15 minutes instead of 3-4 minutes if the question was about being “focus” perfect.
In comparison, hot air curing would have a minimum cycle of 45 minutes to 4 hours or overnight if it was room temperature.