SOTK vs APT Comparison

Sono-Tek Corp designs and manufactures ultrasonic coating systems that apply precise, thin film coatings to a multitude of products for the microelectronics/electronics, alternative energy, medical, and industrial markets, including specialized glass applications in construction and automotive. It sells products to emerging research and development and other markets. Its ultrasonic nozzle systems use high-frequency, ultrasonic vibrations that atomize liquids into minute drops that can be applied to surfaces at low velocity providing thin layers of protective materials over a surface such as glass or metals.

Alpha Pro Tech Ltd is involved in the business of developing, manufacturing, and marketing of disposable protective apparel, building supply, and infection control products principally in the United States. It operates its business through segment which includes Building Supply and Disposable Protective Apparel. It mainly offers a line of construction supply weatherization products, namely house wrap and synthetic roof underlayment as well as other woven material, different styles of disposable products like shoe covers, bouffant caps, gowns, coveralls, lab coats, frocks and other miscellaneous products. It also provides face masks and eye shields. It generates most of its revenues from the sale of products across the United States.