Sono-Tek designs and manufactures ultrasonic coating systems that apply precise thin-film coatings to components across several industries. Sono-Tek technology uses high-frequency vibrations to turn liquids into microscopic droplets. This process creates uniform coatings and reduces material waste compared to conventional spraying. The company sells to the clean energy, medical device, electronics, and industrial sectors. Sono-Tek sells automated multi-axis platforms, integrated inline systems, and ultrasonic nozzle subsystems. Sono-Tek is shifting its business model toward selling complete, production-scale systems rather than individual components. This shift enables the company to capture multi-unit orders as customers scale manufacturing capacity. Sono-Tek also generates recurring revenue from spare parts and services. The company uses a "forward deployed engineering" model, placing engineers directly within customer facilities to optimize system performance and secure follow-on orders. Sono-Tek is diversifying its market exposure by expanding further into medical device applications, such as stent and catheter coatings, and the semiconductor market.