Sono-Tek is the inventor of ultrasonic nozzle technology. Sustainable Manufacturing Coating Equipment Ultrasonic Spray BenefitsPatented Ultrasonic Spray NozzlesHow Ultrasonic Nozzles WorkSpray Shaping Systems Ultrasonic coating is a unique, environmentally-friendly, low velocity spray technology that creates micron thickness, very uniform protective and functional thin films with no clogging and very little overspray.