Corotec Corporation is an internationally recognized supplier of corona discharge surface treating equipment and accessories, serving numerous customers around the globe. Headquartered in Farmington, Connecticut, Corotec ......Corotec Corporation is an internationally recognized supplier of corona discharge surface treating equipment and accessories, serving numerous customers around the globe. Headquartered in Farmington, Connecticut, Corotec Corporation has been a pioneer in corona treating and an innovator in bringing new technology and ideas to market since it was established in 1975. We offer complete applications testing and process development services at no obligation.