Sono-Tek - Ultrasonic Nozzles, Ultrasonic Atomization - Home Sono-Tek is the world leader in the development and application of liquid ultrasonic atomization technology into nozzle systems and spraying and coating application systems. Compared to conventional pressure spraying methods, our ultrasonic nozzles do not clog, reduce liquid usage, waste, and environmental impact while achieving much more precise, uniform, thin film coatings. We are continually developing new applications for our unique technology, replacing wasteful practices in a world that is growing ever more environmentally sens